Scientists at work: New recordings of ultrasonic seal calls hint at sonar-like abilities
Microphones on the seafloor recorded life under the Antarctic ice for two years – inadvertently catching seal trills and chirps that are above the range of human hearing. Could they be for navigation?
Feb. 9, 2021 • ~9 min
The hopeful return of polar whales
Whales are rediscovering their old haunts in the Arctic and Southern oceans after centuries of hunting.
Jan. 1, 2021 • ~7 min
Seals are chirping under Antarctic ice but we can’t hear it
Weddell seals are making all kinds of noise under the Antarctic ice, but at sound frequencies humans can't hear. Listen to an adjusted sample.
Dec. 22, 2020 • ~6 min
Ice sheets ‘talk’ to each other across the planet
"Our results highlight how interconnected the Earth system is, with changes in one part of the planet driving changes in another."
Nov. 30, 2020 • ~6 min
Ice sheets ‘talk’ to each other across the planet
"Our results highlight how interconnected the Earth system is, with changes in one part of the planet driving changes in another."
Nov. 30, 2020 • ~6 min
When ice sheets melt, it’s a seesaw effect
Ice sheets thousands of kilometers apart influence each other through sea level changes.
Nov. 25, 2020 • ~7 min
Warm rivers of air punch big holes in Antarctic sea ice
Warm, moist rivers of air have a lot to do with massive holes in sea ice in Antarctica's Weddell Sea, a new study shows.
Nov. 13, 2020 • ~5 min
200 years ago, people discovered Antarctica – and promptly began profiting by slaughtering some of its animals to near extinction
For 200 years, a small number of countries have exploited the marine wildlife of Antarctica, often with devastating impact on their populations.
Nov. 13, 2020 • ~8 min
Huge toothy birds once soared over penguins
Fossils from extinct pelagornithids indicate that they'd dwarf the 11.5-foot wingspan of today's largest bird, the wandering albatross.
Oct. 29, 2020 • ~8 min
Giant 'toothed' birds flew over Antarctica 40 million to 50 million years ago
Paleontologists have discovered fossil remains belonging to an enormous 'toothed' bird that lived for a period of about 60 million years after dinosaurs.
Oct. 27, 2020 • ~7 min
/
4