Beavers are believed to have evolved around 30 to 40 million years ago during the Eocene epoch. The modern beaver species we recognize today, such as the North American beaver and the Eurasian beaver, have been around for about 10 million years. Their adaptations for a semi-aquatic lifestyle and dam-building behavior have developed over this extensive evolutionary timeframe.
The first animals to resemble modern dolphins evolved ca. 20 million years ago.
The process of defecation evolved many millions of years ago as part of evolution
They began to evolve 600,000 years ago. They died out 27,000 years ago.
They began to evolve 600,000 years ago. They were totally developed 130,000 years ago. They died out 27,000 years ago.
They started evolving about 600,000 years ago. They were completely evolved by 130,000 years ago.
3.5 billion years ago.
50-60 million years ago.
395 Million years ago
50-60 million years ago.
Neanderthals began to evolve 600,000 years ago, and were fully developed 130,000 years ago.
1.2-1.5 Billion Years ago!
They began to evolve 600,000 years ago, reaching full development 130,000 years ago.