English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

what are some main differences in them.... i know one if suppose to be more aggressive and they live in different places but what are main differances between them? Thanks

2006-08-23 17:19:45 · 6 answers · asked by Kara T 1 in Education & Reference Trivia

6 answers

The first difference between a crocodile and an alligator is that they are from different families of crocodilians. Crocodiles are from the crocodylidae family, while alligators and caiman are from the alligatoridae family.

In terms of physical differences the easiest way to tell the difference between the two is that a crocodile has a very long, narrow, V-shaped snout, while the alligator's snout is wider and U-shaped. Because of the wide snout of the alligator it packs more crushing power to eat prey like turtles that constitute part of its diet. The narrow crocodile snout, although still very powerful, is not really suited for prey like turtles but is very versatile for fish and mammals.

Another physical difference between the crocodile and the alligator is that the crocodile's upper and lower jaws are nearly the same width, so the teeth are exposed all along the jaw line in an interlocking pattern, even when the mouth is closed. They also have an enormous 4th tooth on the lower jaw that is accommodated by depressions in the upper jaw just behind the nostrils.

An alligator, on the other hand, has a wider upper jaw, so when its mouth is closed the teeth in the lower jaw fit into sockets of the upper jaw, hidden from view. Only the teeth of the upper jaw are exposed along the lower jaw line. Even the enormous 4th tooth on the bottom jaw, which is exposed in a crocodile, is hidden in the alligator.

Another physical difference is that crocodiles have a lighter olive brown coloration, while alligators appear blackish. Alligators also prefer freshwater while crocodiles like brackish water and sometimes even ocean.

Speaking to this difference, while crocodiles and alligators both have glands on their tongues, crocodiles still use these glands to excrete excess salt. Alligators seem to have lost this ability, making their tolerance for salt water comparatively brief. Biologists believe this suggests that the crocodile is less removed from its oceanic ancestry.

Both crocodiles and alligators have dotted sensory pits along the upper and lower jaws that look almost like beard stubble. They detect slight changes in water pressure, thought to help the animals locate prey. These sensory pits were called Integumentary Sense Organs (ISOs) until they were renamed to Dermal Pressure Receptors (DPRs). While both animals have them along the jaws, the crocodile has one on every scale covering its entire body. Some researchers believe the crocodile's DPRs might be linked to detecting levels of salinity.

2006-08-23 17:26:23 · answer #1 · answered by KIT-KAT 5 · 1 0

i thought the croc had a round snout and alligator a pointy snouth...

2006-08-23 17:24:48 · answer #2 · answered by Anonymous · 0 0

The alligator........lives in southern U.S.... they are both in the same family...both of them will enjoy you as their next meal. Crocks get larger.

........how's that.?....."O" Wise One...has spoken

2006-08-23 17:26:08 · answer #3 · answered by Anonymous · 0 0

the croc can live in salt water...alligators cannot

2006-08-24 02:30:38 · answer #4 · answered by jefferson 5 · 0 0

If I remember right, one opens it's jaw up and the other down.

2006-08-23 17:21:22 · answer #5 · answered by Michael M 6 · 0 0

their spellings

2006-08-23 17:25:44 · answer #6 · answered by chalyde11 2 · 0 0

fedest.com, questions and answers