No no no the first shark appeared in the jurassic period.
yes it did because i went on a better website and found dht out.... duhhh
The duckling started swimming out of instinct when she followed the rest of the flock into the lake for the first time. Your instinct when you touch something very very hot is to move your hand right away without thinking.
Dinosaurs
About 230 million years ago.
Middle to late cretacious. But some dinosaurs e.g raptors, and pterosaurs were there even earlier.
No. Sharks appeared on earth long before the first dinosaurs did.
The first dinosaurs evolved in the Mesozoic. At the end of the Mesozoic, all non avian dinosaurs became extinct. Therefor, all non avian dinosaurs, and some avian dinosaurs (birds), lived in the Mesozoic.
1957 when the dinosaurs became extinct
The first dinosaurs lived in the beginning of the Mesozoic Era (or the Age of Reptiles). Birds were amazingly discovered to be dinosaurs so dinosaurs were also alive in the Cenozoic (that's our time-the Age of Mammals) to today.
The first dinosaurs evolved in the Mesozoic. At the end of the Mesozoic, all non avian dinosaurs became extinct. Therefor, all non avian dinosaurs, and some avian dinosaurs (birds), lived in the Mesozoic.
They appear in the fossil record in the late Triassic about 230 million years ago and go extinct around 65 mya.
A horse's first instinct if it is afraid is to run.