2. Like all mammals, echidnas feed milk to their young but they don't have nipples. Female echidnas have special glands in their pouch which secrete milk. The baby echidna, called a puggle, laps it up ...

In forthright style, Dr Rismiller explains in detail the echidna's four-headed penis, a pseudo pouch that forms only after impregnation, and a milk patch that feeds their young. She also speaks ...

In male echidna there are nine sex chromosomes while platypus has an even 10. The male echidna has five X chromosomes, but only four Y chromosomes, whereas the male platypus has five X and five Y).

But this echidna isn't hiding from approaching researchers ... Baby echidnas, puggles, hatch in their mother's pouch, where they suckle milk through her skin, staying there for up to 55 days.

Scientists captured images of an elusive echidna named after the British biologist Sir David Attenborough for the first time in over 60 years. Attenborough's long-beaked echidna was last recorded ...