Ask+a+scientist+Q+and+A+23

Q: Can marine animals like whales and dolphins live in fresh water? A: They can temporarily, but after a little bit they get tired because they wouldn't have much boyancy. that means they couldn't float as much as in salt water. also it would damage their eyes and skin.

Q: Which mammals are the most endangered and what would happen if they go extinct? A: The Vaquita also known as the Gulf of California porpoise. If this species becomes extinct, so will its preadatos which will lead to less and less population of a lot of animals.

Q: What kind of barnacle grows on whales, and does it hurt them? A: The barnacle growing on the whale depends on the species. For example the barnacle Coronula Diadema grows on the humpback whales only. The barnacle does not hurt the whale but has a symbiotic relationship with it. Which means they both benifit from the barnacle growing there.