Neither one is "poisonous", but an adult male platypus has a venomous spur through which it can deliver a powerful and agonising venom.
The echidna does not have poison. Although it does have spurs on its hind legs (like the platypus) it is not poisonous.
No. The echidna has no venom in its spines or anywhere else. Like a platypus, the male echidna has a spur on its hind leg, but unlike the male platypus, the echidna's spur is not connected to a venom gland.
The Platypus and the Echidna are the only mammals that are Oviparous.
The two monotremes are the platypus and the echidna. There is just one species of platypus, and two species of echidna - the long-beaked echidna, found in New Guinea, and the short-beaked echidna, found only in Australia. The platypus is also found only in Australia.
The platypus and the echidna are the world's only two known egg-laying mammals. They are classified as monotremes.
The two monotremes are the echidna and the platypus.
The platypus and echidna are recognised as egg-laying mammals. They are monotremes, which are egg-laying mammals.
The platypus's spur is sharp and attached to a venom gland in the platypus's thigh. The echidna's spur is blunt, and is not attached to a functional venom gland.
The platypus is a monotreme, which is an egg-laying mammal. The only other animal in this group is the echidna. There are two species of echidna: the short-beaked echidna, which is found in Australia, just like the platypus; and the long-beaked echidna, which is only found on the island of New Guinea.
The platypus is found only in Australia. The common echidna known as the short-beaked echidna lives in Australia, but the long-beaked echidna lives in New Guinea.
There are only two monotremes - the echidna and the platypus. There are some similarities between them. * They are both monotremes, egg-laying mammals. * Both can swim, but the platypus is semi-aquatic, while the echidna lives on land. * Both animals can be found from trpoical northern regions of Australia down to sub-alpine regions of Tasmania. A difference is that the echidna can also survive quite well in semi-arid areas. * Both have strong claws for digging burrows for shelter, but the platypus also has a retractable membrane between its claws, which helps it to swim. * Both the male platypus and the male echidna have a spur on their hind ankle, but the platypus's is poisonous whilst the echidna's serves no known function. * Neither echidnas nor platypuses have teeth. The platypus grinds its food between bony plates in its bill, whilst the echidna uses its long, sticky tongue to catch and eat termites and ants.
The platypus and echidna are unusual because they are the world's only known monotremes, which means they are egg-laying mammals. Though egg-layers, they are classified as mammals because the young suckle mothers' milk.