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FAMILY:
ALLIGATORIDAE

A. mississippiensis
A. sinensis
C. crocodilus
C. c. apaporiensis
C. c. fuscus
C. latirostris
C. yacare
M. niger
P. palpebrosus
P. trigonatus

FAMILY:
CROCODYLIDAE

C. acutus
C. intermedius
C. johnstoni
C. mindorensis
C. moreletii
C. niloticus
C. novaeguineae
C. palustris
C. porosus
C. rhombifer
C. siamensis
M. cataphractus
O. tetraspis
T. schlegelii

FAMILY:
GAVIALIDAE

G. gangeticus

DICHOTOMOUS KEY
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Alligator mississippiensis

Adult partially submerged in water. During the dry season, alligators will excavate "alligator holes" using their tail. An entire miniature ecosystem can form around such holes, as they become the only source of water for several miles, highlighting the important and beneficial effect an individual alligator can have upon its habitat during periods of drought. Other animals (e.g. birds, mammals and reptiles) may come to the water hole for shelter, food and water, although they may occasionally provide food for the resident alligator.

Photograph courtesy of Julie Ehrstein

ALL IMAGES:
[click on image for enlargement]

Click Alligator habitat in Florida Everglades Click Basking alligator on grass Click Drawing of adult alligator
Click Alligator on grass behind tree Click Sub-adult basking on floating log Click Leucistic hatchling (b&w)
Click Head of large adult Click Head of swimming adult Click Front view of adult asleep on sand
Click Adult floating in water Click Sub-adult basking on floating log Click Head silhouette in water
Click Leucistic adult alligator Click Dorsal view of elongated alligator head Click Top-down view of sub-adult alligator
Click Tightly-packed sub-adults in water Click Close-up of juvenile alligator eye Click Close-up of juvenile alligator head





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