Sharks are still in existence, while dinosaurs became extinct long ago.
There are many similarities and differences between a shark and a whale. The similarities is that have a similar streamlined body structure but the differences are many including sharks are fish while whales are mammals, sharks have a vertical tail structure while whales have a horizontal one among others.
Sharks are Sharks and dinosaurs are dinosaurs. But there were animals recognizable as Sharks living when the dinosaurs did.
both fish
analogous
Yes because dinosaurs are tasty and sharks are mean
their race and their opportunities
Dolphins breathe with lungs while sharks breathe with gills.
Sharks existed at the same time dinosaurs did. Sharks pre-date the dinosaurs by quite a bit. To get from sharks to dinosaurs: sharks - bony fish - lobe finned fish - lung fish - amphibians - reptiles - dinosaurs.
Shark
There are many differences between the shark and the dolphin. Sharks are cartilaginous fish whereas the dolphin is a mammal. Sharks take air in through their gills while dolphins breathe fresh air using their lungs.
sharks where brought into this world by dinosaurs
Yes, there were! In fact, sharks were around even beforethe dinosaurs!