Natural History Museum%2c London1y
Ten reasons to love echidnas
The baby echidna, called a puggle, laps it up ... The last one remaining gets to mate with her. 6. Male echidnas have four-headed penises. The penis grows up to seven centimetres long when erect and ...
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Echidna genome study unravels the events leading to multiple sex chromosomes
The male echidna has five X chromosomes, but only four Y chromosomes ... sperm and eggs (meiosis), these sex chromosomes pair in a head-to-tail manner and form chains, rather than the side ...
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Researchers rediscovered a spiky, beaked echidna named after Sir David Attenborough that hasn't been seen for 60 years and was thought to be extinct
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 ...
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Echidna Genome Sheds Light on Complex Sex Chromosome Evolution
The male echidna has five X chromosomes, but only four Y chromosomes ... sperm and eggs (meiosis), these sex chromosomes pair in a head-to-tail manner and form chains, rather than the side ...