Mostly, although there are some handsome pink ones in the Amazon, and of course Orcas are actually dolphins.
No, dolphins may not change colours at all.
Dolphins are mammals so they reproduce the same way all mammals do.
a dolphins color is gray
Well, .........you know some food like shrimp, jellyfish, lobster and you get the point right?
Dolphins are vertebrate's. they have back bones the same as humans whales and all other mammal's.
No,it according to the type of dolphin they are
Yes all vampire bats are the same color
Yes they are both eukaryotic, as are all animals.
GRAY!
it is gray
grey
No; whales aren't the same as dolphins. It appears that whale is a term that can be applied generally to all members of the order of cetaceans, the order to which all whales and dolphins belong. However, the term dolphin usually applies to cetaceans in the families delphinidae, odontoceti (toothed cetaceans) and sometimes platanistoidea; there is not a completely defined use of terms. So you have to be careful how you ask the questions and how you use the terms. So you can thenk of whales and dolphins as all being cetaceans, but are all whales dolphins? No.