What is the life cycle of an animal? The largest mammal is the blue whale (weighing 160,000kg) and the smallest is the bumblebee bat (weighing 2g). Life Cycle - Everything About Dolphins In search of prey, these dolphins are mostly found in deep ocean waters. Dolphin life cycle ks2 . There are between 4,500 and 5,500 species of mammals. Dolphins don’t need to drink to stay alive. The young rabbit grows and develops. The life cycle begins by finding a mate. They are nursed for 1 and a half to 2 years long. Mammals, amphibians, insects and birds powerpoint 8. Draw each stage of their life cycle below: As it grows, it develops fur and starts to eat solid food. These dolphins are known for their acts of spinning and leaping. Every mammal has the same life cycle. To breathe, dolphins use a blowhole on their heads. Children observe how plants develop over time, keeping records of their changes. The life cycle of dolphins is similar to that of land mamm...