|Because Crocodiles can see and breathe
underwater, does that mean they have gills or do
they have some other system of respetory?
They may seem to breathe underwater, but really
they can only breathe when their nostrils are in
the air. Their snouts are shaped so that they can
be almost all underwater, but still breathe.
Crocodiles are reptiles, so they have scaly skin.
But amphibians like salamanders don't have
scales. Not only do they sometimes have gills,
they can actually get oxygen through their skin.
The drawback is that they dry out fast.
Crocodiles can also do with less oxygen than we
can because they are "cold-blooded." This doesn't
mean that they're actually cold; it means that
they get their heat from the environment. We get
some from our surroundings, but make a lot of our
own heat. This means that our systems work a lot
harder and need a lot more food and
oxygen.Crocodiles have been around WAY longer than
humans. What do you think made them so successful
that they have stayed the same for so long?
All crocodilians have a similar body shape, with a
head held horizontally in front of the body, four
legs which project from the sides, heavy scales
which function as armor, and a heavy muscular
tail. Their front feet have five separate toes and
their rear feet have four partially-webbed toes.
Their eyes are on the top of their head, close
together to allow for binocular vision (the field
of vision of the two eyes intersects, to provide
more accurate depth perception in front of the
animal). The nostrils are crescent-shaped and
valvular, and set at the end of the snout, which
allows breathing even when the animal is almost
Check out this site that
the above information was taken from.There is a
lot of great information about crocodile
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