Dolphins and Whales can stay under water for so long is because they have blowholes to come to the surface and get air. They can stay under water for quite a while before they need another breath at the surface:) Need more help... Just ask!!!!!!!!!!!!!!
Yes
yes, a dolphin is a marine mammal
dolphins
Dolphins
Dolphins are marine mammals, they do not live on land.
Marine mammals do not live on land, and no marine mammals lay eggs. Marine mammals include whales, dolphins and porpoises.
The marine mammals are "dolphins." (The NFL team is the Miami Dolphins.)
Dolphins are marine mammals that are closely related to whales and porpoises.
dolphins
dolphins
Some do. For example, dolphins and whales are marine mammals and they have fins.
Yes they are. In fact they are marine MAMMALS in the Order Cetacea.