Search results for Whale

Evolution Apr 10, 2024

Flowers may be more ancient than dinosaurs, but scientists can't agree on when they evolved

Flowers may look delicate—but flowering plants, what scientists call angiosperms, are one of the most successful evolutionary organisms on the planet. Including more than 350,000 known species, they dominate the ecological ...

Earth Sciences Apr 10, 2024

The limits of ice: What a 19th-century expedition trapped in sea ice for a year tells us about Antarctica's future

In 1897, the former whaling ship RV Belgica left Antwerp in Belgium and set sail due south. It was the first voyage of what would become known as the Heroic Age of Antarctic exploration. It did not go to plan.

Evolution Apr 9, 2024

Mysterious bones may have belonged to gigantic ichthyosaurs

Several similar large, fossilized bone fragments have been discovered in various regions across Western and Central Europe since the 19th century. The animal group to which they belonged is still the subject of much debate ...

Environment Apr 9, 2024

Peregrine falcons expose lasting harms of flame retardant use

Peregrine falcon populations across North America are heavily contaminated with harmful flame retardants–including those that have been phased out for years—according to a new study published in Environmental Science ...

Plants & Animals Apr 9, 2024

How whales struggle to navigate in a sea of noise pollution

In 1490, Leonardo da Vinci wrote, "If you cause your ship to stop and place the head of a long tube in the water and place the outer extremity to your ear, you will hear ships at a great distance from you."

Environment Apr 9, 2024

Antarctica's sea ice hit another low this year—understanding how ocean warming is driving the loss is key

At the end of the southern summer, Antarctica's sea ice hit its annual minimum. By at least one measure, which tracks the area of ocean that contains at least 15% of sea ice, it was a little above the record low of 2023.

Plants & Animals Apr 8, 2024

Toothed whale echolocation organs evolved from jaw muscles, new research suggests

Dolphins and whales use sound to communicate, navigate and hunt. New research suggests that the collections of fatty tissue that enable toothed whales to do so may have evolved from their skull muscles and bone marrow.

Plants & Animals Apr 7, 2024

Scientists say these killer whales are distinct species: It could save them

More than 150 years ago, a San Francisco whaler noticed something about killer whales that scientists may be about to formally recognize—at least in name.

Plants & Animals Apr 4, 2024

Amphibians use scream inaudible to humans for self-defense against predators, study suggests

A study reported in the journal acta ethologica has recorded the use of ultrasound by amphibians for the first time in South America. It also describes the first documented case of the use of ultrasound for defense against ...

Plants & Animals Apr 4, 2024

Salmon populations are struggling, bringing economic woes for California's fishing fleet

On the docks at Pillar Point Harbor, fishing crews have been arriving with loads of freshly caught Dungeness crab.

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