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  1. Evolution of fish - Wikipedia

    Fish may have evolved from an animal similar to a coral-like sea squirt (a tunicate), whose larvae resemble early fish in important ways. The first ancestors of fish may have kept the larval form into …

  2. Fish - Evolution, Paleontology, Adaptation | Britannica

    Jan 31, 2026 · Most important for the evolution of fishes and vertebrates in general was the early appearance of bone, cartilage, and enamel-like substance. These materials became modified in later …

  3. The Evolution Of Fish - FossilEra.com

    Explore the 530-million-year evolution of fish from jawless pioneers to modern diversity, tracing major fossils, extinction events, and key adaptations.

  4. What is the origin and evolution of fish? – The Institute for ...

    Oct 3, 2025 · The origin and evolution of fish traces back over 500 million years, beginning with jawless, armored forms and diversifying into the vast array of species inhabiting our planet today, …

  5. 500 Million Years of Fish Evolution - ThoughtCo

    May 12, 2025 · The first vertebrates on the planet, prehistoric fish lay at the root of hundreds of millions of years of evolution. Here's what you should know.

  6. When Did Fish Evolve? A Timeline of Their Evolution

    Aug 22, 2025 · Explore the vast timeline of fish evolution, tracing their origins, major adaptations, and enduring impact on life’s history.

  7. Fish Evolution: Pathways and Adaptive Mechanisms

    Dive into the fascinating evolution of fish 🐟. Explore adaptive mechanisms, environmental impacts, genetic variation, and human influences on diverse species.

  8. Fish in the Ocean: A Complete Guide to Their ... - | Your Fish Guide

    The vast oceans of our planet hold countless mysteries, but perhaps none as fascinating as the evolutionary journey of fish. From their humble beginnings over…

  9. How Fish Evolved to Breathe Air and Live on Land

    Jul 29, 2025 · It unfolded over millions of years, as certain fish gradually evolved the ability to breathe air and move beyond the confines of their watery realms. These pioneering vertebrates laid the …

  10. 12.11: Fish Evolution and Ecology - Biology LibreTexts

    The earliest fish, resembling living hagfish, evolved about 550 million years ago. Adaptations that eventually evolved in fish include a complete vertebral column, jaws, and an endoskeleton made of …