Evolution Encyclopedia Vol. 2

Chapter 20
THE CREATOR'S HANDIWORK: AMPHIBIANS AND REPTILES
The amphibians Include frogs, toads, and salamanders. The reptiles
include lizards, snakes, crocodiles, and turtles. There are astonishing
facts about these creatures which clearly prove they could not have been
formed by evolutionary processes.
FRESH FROZEN
-Some
creatures survive the winter by hibernating. Others burrow deep into the
ground to avoid freezing temperatures. But there are others which
actually do freeze! The painted turtle of the northern U.S., can freeze
in the winter and still survive. It can be in water which freezes solid,
and as long as less than 54 percent of the water in its body freezes, it
will later thaw out and do just fine. As freezing nears, the blood sugar
levels in this turtle triples, and certain amino acids, which act as
antifreeze preparations, greatly increase in its body. In addition
glycerol, another antifreeze substance, triples.
MIDWIFE FROG
-Unlike
most frogs, the female midwife frog lays her eggs on land close to
water. The male midwife frog takes the eggs as they are being laid by
the female- and twines the strings of eggs about its hind legs.
He then digs a hole in moist sand or soil, which he does very rapidly.
There he sits with the egg string, waiting patiently while the eggs
incubate.
Then, at a certain time, he knows to suddenly climb out of the hole and
jump into the water and begins swimming energetically. This breaks the
egg membranes, and tiny tadpoles scatter in all directions.
GECKO LIZARD-
This
tiny lizard can walk across your smooth ceiling upside‑down without
falling off. Scientists could not figure out how the little fellow
accomplished the task. Using optical microscopes up to 2,000 diameters
magnification, they found thousands of transverse lines running across
each of the four finger‑like toes on each foot. Well, that gave some
information, but it did not solve the problem.
Then the powerful scanning microscope was invented, and it was turned on the foot of the gecko lizard. A series of photographs were taken, each 35,000 diameters or more in magnification. They discovered that each of the "fingerprint" ridges on its toe‑was filled with millions of short fibers or hairs; on the ends of each was a tiny suction cup!
This would provide immense sticking power too immense. The poor creature
could put its foot down on a smooth surface‑and not be able to lift it
back up! But the lizard's foot is designed so that the toe joints bend
or curl up at the ends. In this way, the gecko lizard can bend up each
toe, and unstick them gradually without having to do it all at once.
It was estimated that one gecko lizard has at least 500 million suction
cups on his 16 toes How wondrously made are even the smallest of the
animal life forms.
Evolution could not enable the gecko lizard to walk on ceilings.
Remember that the next time you see a lizard walking on a wall.
SERPENT'S TONGUE
-As its
forked tongue flickers in and out, the serpent is picking up small
particles from the air or ground and transferring them to Jacobson's
organ. This is a special structure shaped like a pair of pits in the
roof of the mouth, with a sensory organ lining similar to that in a
nose,‑but much more accurate.
PRODUCING FROGS
-A frog lays its eggs, but
no frog hatches from the eggs. Instead, a flsh, well, something like a
fishcomes out of the egg. It has gills and is entirely aquatic. Remove
it from the water where it is swimming and it will quickly die, for it
cannot breathe air from the atmosphere.
Soon the tadpole begins to sprout legs. A fish growing legs! In a few
days, it undergoes a radical transformation. Its gills disappear, and
lungs and other organs are formed. A little longer and the tadpole has
become a hog! From then on, it can go on land or into water and is
perfectly adapted to both.
Every spring the miracle occurs again. Frogs produce eggs, which become
fish‑like creatures, which become frogs with lungs.
It is 16 inches [40.64 cm[ in length with a creased, wrinkled, baggy
hide which looks as if it were several sizes too large. It also has an
oversize stomach.
Why is it so wrinkled? At the approach of an enemy the lizard quickly
crawls into a sack in the rock. Once inside, it grips the rock, sucks in
air, and pumps up its body to as much as 300 percent of normal size.
This jams it into the crack so
CLICK TO ENLARGE
There might not be any rain for a full year, so the chuckwalla is only
active in late spring and early summer. The rest of the time it is
hibernating. Emerging about March 20, it eats every plant it can find.
Beneath all the Baggy, baggy skin along its sides are lymph spaces which
it fills with water whenever it can find any. By August its stored water
is nearly gone, and it goes into hibernation till the following spring,
while living on its food reserves.
The plants it eats all grow on alkali soil, so they are full of sodium
and potassium salts. Each summer the chuckwalla eats enough salt to kill
it. In its nasal passages there are two bean‑shaped glands connected to
ducts which run forward to a pool inside the nostril. The glands are a
chemistry department which extracts the salts. They flow to the pool,
where they are expelled by sneezing.
Because the morning is colder than the evening, this little lizard is a
late riser. In the morning it changes to a dark color so it will be able
to absorb more sunshine faster. Later in the day, it changes to a light
color to help it better reflect the sun's rays.
When the afternoon temperature climbs to 102F [38.8C], as it very often
does, the lizard craws under a shady rock and pants to cool itself off.
All that required a lot of careful designing by a highly intelligent
Creator. And all the design systems were then carefully incorporated
into the chuckwalla's DNA coding.
The crotalid snake has a sense organ on its head which can detect
temperature changes as small as 1 /100th of a degree. But consider the
rattlesnake: That creature, with its pits, is able to sense a change of
1/600th degree F.
A boa constrictor responds in 35 milliseconds to a heat change of a
fraction of a degree.
But how can it do that? The egg case is too hard to break. So, like many
baby birds, the alligator has a special "tooth" on the tip of its nose.
Striking it against the egg case causes it to split open and out the
baby alligator emerges. Shortly afterward, the tooth drops off.
Where did that tooth come from? To put it there would require thousands
of DNA changes. But by the time random evolution accomplished them all,
all the alligators in the works would be dead, having not been able to
get out of their egg cases.
It is of interest that, although an alligator can close its jaws with a
force sufficient to break a person's arm, the muscles that open its jaws
are so weak that it is possible for a man to hold the mouth of a
full-grown alligator shut with only one hand. (But watch out for that
tail!)
Other creatures can do it also. Crabs can regenerate a claw that has
been snapped off. If a lobster loses an eye, it will grow a new one.
By the way, if your liver was in good health and part of it was cut out,
it would re-grow the lost portion within a few months.
How can the turtle become warm so rapidly and cool so slowly? It has the
largest difference in warming and cooling heart rate of any reptile.
This means that, during the warming process, its heart beats much faster
than it normally would. Its cooling heart rate is virtually independent
of body temperature,-something that appears to be unique for any
vertebrate.
Some species, such as the adder and the common lizard, lay eggs in warm
parts of their habitat (oviparous), but in northern areas will bear
their young live (viviparous).
Caecilians look like large earthworms but are amphibians. Some of them
lay eggs (oviparous), while others are viviparous and produce milk in
the uterus.
The black salamander is viviparous, and nourishes its young, as do
sharks, on unfertilized eggs in the oviduct.
At least two kinds of lizards are
parthenogenetic: the females bear young without having been
fertilized.
Two lizards are hermaphroditic:
two lizards fertilize each other, and then both bear young.
This little creature uses its stomach to hatch the eggs! It uses its
stomach both to digest food and
as a womb!
When this frog becomes pregnant, the stomach stops its digestion
functions and ceases to excrete enzymes. Instead, it becomes an
incubator, where dozens of baby frogs are hatched.
Soon mama frog has dozens of live baby frogs crawling around in her
stomach! Seeing the hole at the top, they crawl up the esophagus into
her mouth, and she spits them out. When the last one emerges, the "womb"
again becomes a regularly functioning stomach!
Horned toads in the Southwest have a color so similar to that of the
desert sand that the animal is not seen until it moves.
Examination of the retina discloses that these
snakes have twice as many cones as we do! This means that they can
see color far better than people can.
Snake eyes are different from the eyes of any other creature among the
reptiles or vertebrates.
Vertebrate eyes are like a simple camera, in which light enters the
lens, which being actuated by several different methods, then directs it
through transparent vitreous fluid to a focus on the retina, the
light‑sensitive area which covers two‑thirds of the rear part of the
eyeball.
But in the snake there is an outer "spectacle." Something like a contact
lens over the eye, this is the transparent scale that covers each eye.
Because the snake must crawl in the dust, and even go down holes in the
dirt and between dirty leaves, and between dusty rocks, it needed eye
protection. Without that clear, covering scale, the delicate cornea
would be damaged and the snake would soon be blinded.
Gradually this outer scale becomes scratched, dimming the snake's
vision. But it can sense odors with its tongue, and (in the case of the
pit vipers) directional heat on its pits, so it can make it without
clear eyesight. Several times a year the snake sheds its skin. At that
time it gets a new spectacle, and can see well again for a time.
A snake with transparent scaled Yes, as we have just observed, there are
two of them on every snake. Would anyone say it is by coincidence‑that
they are right over its eyeballs! How could the randomness of
"evolution" produce that?
SALTY CREATURES
-Sea
turtles and sea iguanas (a mammoth lizard) both have the ability to
remove salt from the water they drink. Special glands in their bodies
routinely accomplish this task.
The male has vocal sacs which he uses to sing with, but they are
structured in such a way that he can also use them to hold the eggs that
the female lays! The eggs go into his mouth and from there do not go
into his stomach, but into two channels on the floor of his mouth. These
lead into a pouch under his neck which grows larger as the eggs hatch.
When the baby frogs are born, they remain there till they pass through
the larval stage.
When the crocodile opens its mouth, no water goes down its throat
because of a special flap at the back of its mouth. When it closes its
mouth, the water continues to run into it because it has no lips and
many cracks.
After 30 minutes underwater, all of its metabolism slows down, with the
exception of its heart and brain. In this way it can remain underwater
longer.
This large creature, which is 18 feet [30.5 dm] long and 1,800 pounds
[816.5 kg], has a special transparent eyelid that covers the eyeball
when it is submerged. The eyeball is designed with shiny skin behind the
retina, in order to reflect light onto the retina. In this way it can
see better in the darkness under the water than it otherwise could.
In the daytime, it crawls under the sand where it is cooler, remaining
there till evening. It has special scales on its body which it opens up
and, like little shovels, uses to scoop out sand. As it does this, it
throws that sand on top of its body. This snake can do that operation in
2 seconds! Then it crawls under the sand and keeps cool and avoids
desert hawks.
Once under, it leaves the last 2 inches [5.08 cm] of its tail above the
sand. This tail wiggles every so often, and that intrigues the desert
mouse, which the snake then catches.
There is a horn above each eye, which is something like an awning to
shade the eye from the sun. But when the snake throws sand up and over
its back, the horns keep the sand from falling into its eyes‑not only
when it is digging, but afterward while it is hiding under the sand.
The sand is too slippery and hot for a snake to crawl through in the
regular way. So, the Egyptian horned desert viper crawls sideways
through the sand, just as does the sidewinder in the American deserts.
It humps its body up as it goes so that only parts touch the sand at any
given time. This leaves "J" marks in the sand. the snake looks like it
is going forward when it is really going sideways. Who taught these two
snakes, so very distant from each other, to travel in the same way?
The special enemy of this lizard is the snake, and it has to swallow its
food whole. It cannot merely bite off a piece and swallow that, then
bite off another piece. Because the serpent cannot swallow both the
lizard and that sideways stick, it gives up and glides away.
The female lays eggs on the ground, and the male guards them. When
predators come, he lures them away. These frogs and their eggs are never
in the water. When the eggs hatch, the father exudes a liquid goo onto
his back. Then he hops near and touches the tiny frogs. Immediately they
swim up by means of that liquid onto his back. Once on, the father frog
can hop around and his babies will not fall off!
They swim around through that liquid on his back for a month. All during
that time, his back continues to exude more mucous. During that time,
they feed on the yolk in the eggs. They must be in fluid during that
time, since baby tadpoles have no lungs as adult frogs do. Instead,
their long tails have blood vessels close to the skinwhich absorb oxygen
and give off carbon dioxide.
After a month, they jump off his back and hop away. The mucous on the
father's back stops coming out and his back dries off.
When an enemy comes, the tail end flattens out, rises in the air -and
looks like an angry cobra defending itself. Looking more closely at this
"head," we find that it has black and white bars, just like those on the
cobra, with a red tip at the end that looks like its mouth! There it is
with its "head" raised, seemingly ready to strike, while its body is
coiled-and underneath those coils is its real head protected. If the
enemy leaves, as much of the time it will, then the pipe snake uncoils
and quickly travels to a safer place.
This is not a trait which the pipe snake learned.
It lives in the same regions where the dreaded cobra lives, and it is
born with this protective coloration, flattening and other abilities. As
soon as a pipe snake is born, it can imitate a cobra.
CLICK TO ENLARGE
GLIDING TREE FROG
-The gliding tree frog
never goes into water, but remains all its life in the trees and on the
ground of the Borneo jungle. It has webbing between each toe which it
can spread wide like a duck's foot. This helps it glide like a little
parachute. With its sticky toes, it climbs to near the top of a tree 140
feet [426 dm] above the ground. Then it sucks in its neck and stomach so
that both are concave‑curved inward and then it leaps out into the air!
Before jumping it selects a landing spot near the lower part of another
tree. As it travels, it has a range finder in its eyes and brain that
tell it that, based on the vertical distance to the ground and the
horizontal distance between the trees, the diagonal angle of this leap
will be 230 feet [701 dm].
Downward it goes, twisting its feet slightly‑as a rudder‑to help it turn
toward the left or right. At the last moment, it tips up so that it will
land with its head up on the tree trunk. From there, it jumps a final 6
feet [18 dm] and lands perfectly on the ground.
Yet all this was done in the inky blackness of night inside a jungle,
with the overhead foliage shutting out the starlight) The little frog
does all that sighting, leaping, and landing in apparent darkness.
Before concluding, let us consider its nest: Baby frogs are tadpoles and
must have liquid to swim around in, but this frog never enters the
water. So it builds a nest in the trees out of foam! Both the male and
female release albumen from their body onto the top of a large leaf,
stir it up till it is foamy, then the female lay eggs in it. By the time
the eggs hatch, the foam is more liquid, and the tadpoles swim around in
it. Eventually they grow large enough‑although still tiny creatures‑that
they jump out of the nest. When they do that, they plunge over a hundred
feet to the ground below. Being so light‑weight, they land without
injury and hop away.
INCUBATING EGGSSea turtles
and some birds lay their eggs in the warm sand. In this way they are
kept warm until they hatch. Some alligators will gather together a mass
of decaying vegetable matter, and lay their eggs in it. As the
vegetation continues to decay, the temperature will remain warm enough
to nicely incubate the eggs.
ALPINE SALAMANDER-
Climbing up into the high
grasslands on the slopes of the Alps, from 3,000 to 10,000 feet
[914-3,048 m] altitude, you will find the Alpine Salamander.
When the female is ready to lay her eggs, she does not do so in the
regular manner, for it is too cold outside. Instead, 50 eggs go from the
ovaries into the oviducts; of these, two will be fertile. These will
hatch and then remain in the female's body, living and growing as they
feed on the other 48 eggs in there! How could only two-exactly two-be
fertilized, and not the rest, since they were all expelled from the
ovaries?
When they finally emerge, they are just like their parents but smaller.
EGG-EATING SNAKE-
There are certain
snakes which primarily eat eggs. These snakes are about 2 feet tong,
have a narrow head and slender body, no sharp teeth, and are not
venomous.
These creatures can swallow eggs which are wider than their bodies) It
would be equivalent to a human swallowing a basketball!
Locating an egg, the snake coils around it, and then opens its jaw
several times to exercise it. Next it begins to swallow that egg! It
unhinges its jaw, opens it amazingly
wide, and starts
taking in the egg. This is not easy to do, and the snake must push his
head against it for about 20 minutes in order to succeed. It is a close
fit!
As the egg enters the throat, the egg begins to crack. This is because
there are about 30 teeth in a row along the back of the throat which
point downward. The first 17 are knife‑like and long; the next several
are broad and flat; the final ones are more like stumps. When the egg
reaches the back of the throat, the snake begins moving its head forward
and backward over the egg, and this causes a sawing action by the teeth
on the eggshell.
When the egg breaks, the liquid flows down into the stomach, but in
front of it is a valve which admits the liquid- but not the egg shells.
The snake then carefully gathers the egg shells into a ball and spits
them out.
This snake feeds only for about one or 2 months a year, during
egg-laying season. The rest of time it rests or hibernates.
Imagine a creature with teeth in the back of its throat instead of in its mouth!
SNAKE EARS-A
special bone is attached to a serpent's jaw. As a result, the snake can
hear best when its head is pressed dose to the ground. But when the head
is lifted into the air, its hearing is much poorer.
FLYING SNAKE-There
is a snake in South America, called the paradise snake, which flies from
one tree to another. h is really more of a glide than anything else, for
the snake has no wings. As it launches from a tree limb into space, the
snake flattens its ribs tremendously and then glides to a landing place.
Arriving at its destination, it recoils its ribs in their regular
rounded arrangement, and then it crawls away.
FALSE-EYED
FROG-
The South American
false-eyed frog is an interesting creature. Generally about 3 inches
[7.62 cm] long, it is brown, black, blue, gray, and white! Drops of each
color are on its skin, and it can suddenly change from one of these
colors to the others, simply by masking out certain color spots.
The change-color effect that this frog regular produces is totally
amazing, and completely unexplainable by any kind of evolutionary
theory.
The frog will be sitting in the jungle minding its own business, when an
enemy, such as a snake or rat, will come along.
All of this looks so real-with even a black pupil with a blue iris around
it. Yet the frog cannot see any of this, for the very intelligently-designed
markings are on its back!
The normal sitting position of this frog is head high and back low. But when
the predator comes, he quickly turns around so that his back faces the
predator. In addition, the frog puts its head low to the ground, and raises
hind parts high. In this position, to the enemy viewing him, he appears to
be a large rat's head! In just the right location is that face, and those
eyes staring at you!
The frog's hind legs are tucked together underneath his eyes- and they look
like a large mouth! As he moves his hind legs, the mouth appears to move!
The part of the frogs body that once was a tadpole's tail, now looks like a
perfectly formed nose, and it is in just the right location!
To the side of the fake face, there appear long claws! These are the frog's
toes! As the frog tucks his legs to the side of his body, he purposely lifts
up two toes from each hind foot, and curls them out so they look like a
couple of weird hooks.
At this, the predator leaves, feeling quite defeated. But that which it left
behind is a tasty, defenseless, weak frog which can turn around quickly, but
cannot hop away very fast.
You have just completed -
Chapter 20- The Creator's Handiwork- THE AMPHIBIANS AND REPTILES
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