Lest we forget, some mammals live wholly in water. Whales, dolphins, seals and sea cows are some examples. Evolution of horse, elephant, dog, etc., are special stories of evolution. You will learn about these in higher classes. The most successful story is the evolution of man with language skills and self-consciousness.
Which combined statements are correct? 1. “Jawless fish probably evolved around 350 mya.” 2. “Fish with stout and strong fins… evolved into the first amphibians.” 3. “The biggest of them… Tyrannosaurus rex…” 4. “Lest we forget, some mammals live wholly in water. Whales, dolphins…”
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