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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, whereas the male platypus has five X and five Y). During production of sperm and eggs (meiosis), these sex chromosomes pair in ...
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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
What is the echidna? Echidnas are part of a group of animals called monotremes, which is the only group of mammals that lay eggs instead of giving birth to live young. Echidnas are one of only ...