A dolphin named Bubbles makes other fish vomit, then eats it
"Dolphins are predators and actively hunt their prey, whether it's been stolen from another species or not.”
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How chimps teach their kids tool tricks
Adults first demonstrate tool use, then hand over the implements to their infants, who copy the behavior.
Research roundup: 6 cool science stories we almost missed
Also: Cyborg diving suits for cockroaches, why sleepy sperm whales blow bubbles, Betelgeuse's companion star.
Orcas team up to ram sunfish until they explode
“We think this may help younger orcas feed more easily, or it could also just be for fun.”
Dragonflies maneuver like fighter pilots
Male dragonflies' dramatic aerial combat maneuvers emerge from relatively simple vision-based rules.
Male bowerbirds hope to dazzle females with bright human-made items
"It’s a reminder of how human activity is changing the natural world in unanticipated ways.”
How pigeons exploit magnetic fields for navigation
Iron-rich immune cells in the liver may act as sensors for magnetic fields, serving as an internal compass.