Crocodiles vs Alligators Quiz

Study Notes

Crocodiles vs Alligators

Species Count: There are 13 species of crocodiles, contrasting with fewer alligator species.
Size Variation: Crocodiles range from the dwarf crocodile (5.5 ft, 15 lbs) to the massive saltwater crocodile (up to 20 ft, nearly 2000 lbs).
Diet: Both are carnivorous, preying on birds, fish, frogs, and mammals. They lack chewing capabilities and swallow prey whole.
Death Roll: A signature hunting technique where they bite and twist to break their prey's bones.
Habitat: Crocodiles thrive in rivers, lakes, wetlands, and saltwater regions across tropical Africa, Asia, Australia, and Central America.
Mouth Closure: Crocodiles display both sets of teeth when their mouths are closed; their snouts are narrow and v-shaped.
Snout Features: Alligators have shorter, rounder snouts, exposing only upper teeth when their mouths are closed.
Water Habitat: Alligators live exclusively in freshwater environments, notably in the Florida Everglades, the only area with both species cohabiting.
Strength: Alligators possess stronger jaws for crushing shelled prey like turtles.
Coloration: Alligators generally exhibit darker grey or black scales compared to crocodiles, which are usually brown or tan.
Sensory Pits: Both reptiles have sensitive sensory pits on their jaws to detect water movement.
Behavior: Alligators are often more docile, attacking primarily when hungry, whereas crocodiles are aggressive and opportunistic.
Activity Level: Crocodiles are more active in the water, while alligators prefer sunbathing and remain still.
Lifespan: Crocodiles have longer lifespans, living 70-100 years compared to alligators' 30-50 years.
Native Habitat: Alligators are native to the United States, Mexico, and China.
Caimans: Caimans, closely related to alligators, have six species found in Central and South America, preferring mangrove swamps and rivers.
Endangerment: Many caiman species are endangered due to habitat loss and poaching.
Caimans' Appearance: Caiman scales are green, grey, or brown and may have pale stripes or spots for camouflage, with narrow snouts similar to crocodiles.