Fossil Record
The preserved evidence of past life used to study evolution and extinction.
Articles with this tag: 2
Updated: May 13, 2026
Amphibian
Amphibian: biology, life cycle, evolution and conservation
Overview of amphibians (class Amphibia): major groups, anatomy, life cycle, fossil origins, diversity, habitats and modern conservation challenges.
Cambrian explosion
Cambrian explosion: rapid diversification of animal life in the early Paleozoic