Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Apoda is an order of limbless, burrowing amphibians commonly known as caecilians. They are characterized by elongated, worm-like bodies and are mostly found in tropical regions.
5 Must Know Facts For Your Next Test
Apoda lack limbs and have a body structure adapted for burrowing.
They possess small eyes which are often covered by skin or bone, rendering them nearly blind.
Caecilians have a unique sensory tentacle between their eyes and nostrils used for detecting chemical cues in their environment.
Their reproduction can be either oviparous (egg-laying) or viviparous (live-bearing), with some species exhibiting parental care.
Apoda are primarily found in moist, tropical environments across South America, Africa, and Southeast Asia.
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Related terms
Amphibia: A class of cold-blooded vertebrates that includes frogs, toads, salamanders, and caecilians.
Caecilian: A common name for the limbless amphibians belonging to the order Apoda.
Oviparous: A mode of reproduction in which animals lay eggs that hatch outside the mother's body.