Animals

CRISPR used to create first gene-edited opossums
How robots could end animal captivity in zoos and marine parks
Rarely seen glass octopus caught on film
Goats are helping California battle wildfires
Castration linked to younger DNA and biological age
Should a herd of captive elephants be released into the wild?
Hippos in tracking study unexpectedly contract anthrax
Snails wearing smallest computer solve extinction mystery
Bomb detectors record rare pygmy blue whales singing
Microscopic animals revived after 24,000 years in permafrost