noun
- vertebrate animals that develop an amnion during embryonic development, including reptiles, birds, and mammals
Usage: plural of amniote; biology/zoology term; contrasts with anamniotes (fish and amphibians)
Examples
- Amniotes evolved the ability to reproduce on land by developing protective membranes around their embryos.
- Reptiles, birds, and mammals are all classified as amniotes.
- The amnion is a key adaptation that distinguishes amniotes from anamniotes like fish and frogs.
- Scientists study amniotes to understand vertebrate evolution and development.
- Most amniotes lay eggs or give birth to live young with advanced embryonic protection.