Chordates: This phylum includes animals that, at some point in their lives, possess a notochord (a flexible rod that supports the back), a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. The most well-known subphylum within Chordates are the Vertebrates, which include fish, amphibians, reptiles, birds, and mammals (like humans).
- Catégories
- AMPHIBIENS
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