Fish became highly specialized for their aquatic environments.
They have evolved changes for vision, smelling, hearing, intelligence, heat control, diet, breathing, movement, and more!
From Ichthyology #1 Introduction
On Page 13

Fish became highly specialized for their aquatic environments.
They have evolved changes for vision, smelling, hearing, intelligence, heat control, diet, breathing, movement, and more!
From Ichthyology #1 Introduction
On Page 13
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