Drennon's Critters:

Crocs vs. Gators

by your friendly neighbourhood science teacher:

Bill Drennon

The all-you-ever-wanted-to-know page about the difference between alligators and crocodiles...
...and a lot you never wanted to know....Oh well!

Place your mouse over the picture to read the description of each image

Comparing a Young Gator with a Young Croc
American CrocodileAmerican Alligator
Here I am holding the croc and Greta of the Miami Museum of Science is holding the gator.
According to the theory of evolution, advanced forms came from primitive forms of life. It is hard to believe that this crocodile evolved from me!
Ventral View of head
The croc's lower jaw is V-shaped.
The alligator's lower jaw is U-shaped
Side View of head
Side view of American Crocodile. Notice upper and lower teeth visible.
Side view of American Alligator. No lower teeth visible.
Comparing the Color of the Tongue
American Crocodile's have a yellow tongue.
American Alligator's have a white to pink tongue.
Top View of head
Top view of American Crocodile head reveals in and out curves, narrow nostrils.
The gators nostrils are wider and the U-curve smoother.
View of Feet
Foot of American Crocodile, forth toe clawless.
Foot of American Alligator, forth toe clawless like croc.
The power of politics: Because the gator is found in more states than the crocodile, the alligator recieved federal protection before the crocodile. Many people in Florida do not even realize that their state houses the only crocodile in America. It is far more rare than the Alligator. There are probably less than 200 left. Because they are not found in other states, the crocodile does not have the political pull of the alligator. That is ashame. They are beautiful creatures and deserve the full attention of the American public so that they do not become extinct. I have enjoyed observing them often on northern Key Largo in the Florida keys.

Both the gator and crocodile are hatched from white, leather-like eggs at a length under one foot. They grow, on average, about a foot a year for around seven years. Then their growth slows greatly. Unlike humans, they never stop growing. The crocodile, a salt-water animal, grows much larger than the fresh-water gator.

I will include some pictures of aligators (for search engines: gators, aligator, gator) and crocodiles (for search engines: crocs, crocodiles, crocadiles) from the wild, including nests, eggs, and adult animals at a later time.

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All photos and text on this site are original from Bill Drennon