Nate Rott
👤 SpeakerAppearances Over Time
Podcast Appearances
Bubble net feeding is when a humpback whale dives below a shoal of tiny krill or fish and starts to swim in a circle beneath.
It then releases air from its blowhole, creating this ever tightening ring of bubbles that makes its prey gather in tight clusters that are easier to eat.
The new study looked at a specific population of humpbacks over 20 years and found that whales that did not bubble net feed were more likely to start the more time they spent with one that did, suggesting, the study says, that their social bonds are helping spread the behavior through the population, making it more resilient into the future.
is when a humpback whale dives below a shoal of tiny krill or fish and starts to swim in a circle beneath.
It then releases air from its blowhole, creating this ever-tightening ring of bubbles that makes its prey gather in tight clusters that are easier to eat.
The new study looked at a specific population of humpbacks over 20 years and found that whales that did not bubble net feed were more likely to start the more time they spent with one that did.
suggesting, the study says, that their social bonds are helping spread the behavior through the population, making it more resilient into the future.
Over the course of 10 years, researchers used remote-controlled cameras to see when penguins set up colonies to breed at more than three dozen sites.
They looked at three different species and found that all had moved up their breeding season by at least 10 days on average.
Some populations shifted their breeding seasons up by more than three weeks.
The Antarctic is one of the fastest warming places on Earth, as human emissions trap more heat in the atmosphere.
And the study's authors warn that shifting breeding seasons could throw penguins out of sync with other parts of the environment, most concerningly other species they depend on for food.
Over the course of 10 years, researchers used remote-controlled cameras to see when penguins set up colonies to breed at more than three dozen sites.
They looked at three different species and found that all had moved up their breeding season by at least 10 days on average.
Some populations shifted their breeding seasons up by more than three weeks.
The Antarctic is one of the fastest warming places on Earth, as human emissions trap more heat in the atmosphere.