Different phases of evolution during ice age

ScienceDaily
May 23, 2025, 12:04 pm552 ptsHotTop
Cold-adapted animals started to evolve 2.6 million years ago when the permanent ice at the poles became more prevalent. There followed a time when the continental ice sheets expanded and contracted and around 700,000 years ago the cold periods doubled in length. This is when many of the current cold-adapted…

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