Float can contain up to seven digits in total, not just following the decimal point â so, for example, 321.1234567 cannot be stored in float because it has 10 digits. If greater precisionâmore digitsâis necessary, the double type is used.
Back to Animals. 1  Live young-Most mammals give birth to live young (instead of laying eggs like birds or reptiles). 2  Marsupials-Marsupials are special types of mammals that carry their young in a pouch. 3  Egg laying-A few mammals lay eggs, they are called monotremes. 4  A giraffe's tongue is 20 inches long. 5  A hard working mole can dig a hole up to 300 ...
These eggs are laid by birds, many reptiles, and monotremes (egg-laying mammals such as the platypus and echidna). In placental mammals (including humans), which are also amniotes, some of these structures are part of the umbilical cord, while others are vestigial.