Crocodilia

Alligators and kin

Crocodilia is the biological order comprising crocodiles, alligators, caimans, and gharials—large semi-aquatic reptiles with elongated snouts, powerful jaws, and armored skin.

These are the closest living relatives of birds, both descended from archosaurs.

The term appears in scientific and zoological contexts: Crocodilia have remained largely unchanged for millions of years.

behavior

ambush

Surprise strike from concealment

vocalizations · bellowing · maternal care · territorial · nocturnal hunting · floating · lurking · lunging · belly crawl · gaping

anatomy

snout

Beast's protruding face

  • scalesPlates or weighing devices
  • scutesHorny epidermal plates
  • tailRear animal appendage

jaws · teeth · nictitating membrane · cloaca · webbed feet · quadrate bone · skull · vertebrae · musculature · tongue

habitat

freshwater

Non-saline aquatic environment

  • swampWaterlogged land with vegetation
  • riverLarge flowing watercourse
  • estuaryTidal mixing zone

mangrove · wetland · marsh · tropical · subtropical · brackish · billabong · lagoon · floodplain · riverbank

taxonomy

order

Methodical arrangement or request

  • reptileCold-blooded scaled vertebrate
  • cladeMonophyletic taxonomic group
  • familyRelated people together

genus · species · classification · phylogeny · suborder · vertebrate · tetrapod · nomenclature · systematics · taxon

species

alligator

Large American swamp reptile

evolution

archosaur

Ruling reptile clade member

prehistoric · Cretaceous · convergent evolution · ancient lineage · basal · derived · fossil record · paleontology

cultural

Dreamtime

Aboriginal mythological creation era

conservation · CITES · endangered · farm · wrestling · Steve Irwin · Gustave · man-eater · mythology · reverence

Opposites
reptilian order taxonomy

Crocodiliasnakes

Elongated limbless reptiles

lizards · turtles · tortoises · tuatara · geckos

vertebrate class

Crocodiliamammals

Hair-bearing, milk-producing animals

birds · amphibians · endotherms · frogs · placental mammals

archosaur lineage

Crocodiliabirds

Egg-laying flying vertebrates

dinosaurs · pterosaurs · theropods

Phrases
Family

crocodile, crocodiles, crocodilian

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