Yes. Echidnas are vertebrates. They are mammals, and all mammals are vertebrates.
No. All echidnas are mammals, and all mammals are vertebrates. Echidnas are different from "echinoderms".
No. All echidnas are mammals, and all mammals are vertebrates. Echidnas are different from "echinoderms".
They are vertebrates - they have an internal skeleton.
Yes. Like all mammals, echidnas are vertebrates.
Echidnas are different as, like platypuses, they are egg-laying mammals. This group of vertebrates, known as the monotremes, is unique: their method of reproduction is laying eggs, yet they nurture their young on mothers' milk. Apart from producing milk to feed their young, there are other differences: they do not fit with egg-laying reptiles as echidnas are warm-blooded; nor do they fit with egg-laying birds because all birds have feathers, and echidnas, like other mammals, have hair/fur.
Echidnas do not hibernate.
No. Echidnas do not hop. They walk.
There are no echidnas in Bali. Echidnas are found only in Australia and on the island of New Guinea.
No. Echidnas eat termites.
Yes. Echidnas are solitary animals.
Echidnas do not hibernate.
There's no collective term for a group of echidnas.