Cows are milked on a farm in New York State.Credit: Angela Weiss/AFP via Getty The outbreak of avian influenza in US dairy cattle shows no signs of slowing. Over the past three weeks, the number of states where cows infected with bird flu have been detected has risen from six to eight. A preprint1 posted … Read more
The worm-like caecilian Siphonops annulatus is the first amphibian described to produce ‘milk’ for offspring hatched outside its body.Credit: Carlos Jared An egg-laying amphibian found in Brazil nourishes its newly hatched young with a fatty, milk-like substance, according to a study published today in Science1. Lactation is considered a key characteristic of mammals. But a … Read more