more than one
Reptiles are older, and birds are actually descended from them. The first reptiles appeared over 300 million years ago, while birds appeared about 150 million years ago.
Dragon
It was 20 years ago.
the very First Marine Reptiles Returned To the Ocean About 240 Million Years Ago,
Only at the very end of that period. Turtles first appeared about 210 million years ago. There were no reptiles 400 million years ago.
Reptiles inhabited the earth before dinosaurs inhabited the earth. The first reptiles appear in the fossil record over 300 million years ago, in the Carboniferous period of the Paleozoic era.
The Mesozoic Era is an interval of geological time from about 250 million years ago to about 65 million years ago. It is often referred to as the Age of Reptiles
The earliest known reptiles originated around 340-335 million years ago during the Carboniferous period.
Mammals evolved from reptiles around 200 million years ago, during the Mesozoic Era. This evolutionary transition led to the development of unique features that distinguish mammals from reptiles, such as hair, mammary glands, and a more advanced brain structure.
your nan
4 Billion years.
There was 700 polar bears left in our world 50 years ago.