What special features does the platypus have to help it survive in its environment?

Answer 1

The platypus is uniquely adapted to live in a semi-aquatic environment. It has:

• Webbed feet with a retracting webbed membrane which can expose the claws, enabling the platypus to effectively dig burrows. Its claws are used for digging burrows into riverbanks for shelter, and the webbing membrane retracts for that purpose, but spreads between its toes when it needs to swim - which it needs to do to get its food.
• The platypus can remain underwater for between one and five minutes. Its bill has sensitive electroreceptors which pick up tiny nerve and electrical impulses generated by crustaceans and other animals that inhabit the bottom of the creek or river. The platypus then uses its bill to shovel away the dirt, and find the food. It does not have teeth, but hard bony plates which it uses to grind the food.
• The platypus lays eggs (as does the echidna), unlike other mammals. However, it secretes mothers' milk through glands, rather than teats, on which the young feed after hatching.
• The platypus is a semi-aquatic animal, with two layers of fur. Underneath, the fur keeps the platypus warm, while the outer layer is thick, waterproof fur.
• It has a flat, beaver-like tail which acts as a rudder
• 2 eye lids for protection
• Males have venomous spurs on their hind legs to harm or kill predators
• The liver gets rid of water but stores fat
• During mating season, the female platypus digs a separate chamber at the end of her burrow. The eggs are laid here, and once hatched, the mother "closes off" the chamber with a wall of leaves when she leaves, to protect the young. The wall of leaves is also designed in such a way that it helps remove excess water from the platypus when she returns, thus keeping the chamber as dry as possible.