Quaternary

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Quaternary period – modern times

By |2018-11-09T07:50:38+00:00June 24th, 2017|Biology, Geology|

The Quaternary Period includes today - big cities and all When was the Quaternary Period? The Quaternary period began about 1.8 million years ago (1,800,000 years ago), coming after the Tertiary. The Quaternary is still going on today - we live in the Quaternary period. So far, it's a much shorter period than [...]

Reptile and Mammal Skeletons – Evolution and Biology

By |2018-04-16T09:09:50+00:00May 28th, 2017|Biology|

Evolution of skeletons: Skeleton of a dinosaur Evolution of skeletons From frogs, there evolved reptiles like crocodiles and dinosaurs. Some of these reptiles lived mostly or entirely on land, so they needed stronger bones that could hold them up when they weren't in the water. And most reptiles ate meat, so, like fish, [...]