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.
This animal may have sharp spines, but it isn't a porcupine! It's one of two types of primitive egg-laying mammals, or monotremes. (The other is the duck-billed platypus.).
They are also known as monotremes. This group is made up of only five species, including the short-beaked echidna shown here. Monotremes lay soft-shelled eggs. Once an egg hatches, the baby feeds on milk produced by its mother. Monotremes form one of the oldest groups of mammals and are believed to have evolved more than 120 million years ago. Egg-laying mammals do not have teeth â they grind their food using bony plates in their mouth. The short-beaked echidna is native to Australia and New Guinea. This mammal is also called a spiny anteater, as its body is covered in spines.