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295 Results From "marine mammal "

Reconstruction of Hupehsuchus about to engulf a shoal of shrimp. The ancient lizard widely opens its skinny snout and large mouth to swallow a large ball of shrimp.

The planet’s first filter feeder could be this extinct marine reptile

By Laura Baisas

A side view of a great white shark. Regional endothermy in fish has been seen in apex predators like the great white sharks or giant tuna.

Megalodon’s warm-blooded relatives are still circling the oceans today

By Laura Baisas

A sea otter resting in a kelp bed in Monterey Bay, California.

Sea otters can help conserve vital kelp forests

By Laura Baisas

A photo of a humpback whale and her calf.

Boat noise is driving humpback whale moms into deep, dangerous water

By Marina Wang / Hakai Magazine

Oysters can’t sleep—and your lights might be the cause

Oysters can’t sleep—and your lights might be the cause

By Hannah Seo/Hakai Magazine

A banded sea snake swimming freely

Some sea snakes may not be colorblind after all

By Laura Baisas

four orange candles are in a row with a black background

How to use candles and incense sustainably

An artist's rendition of the Perucetus colossus.

This giant sea cow-like whale may have been the heaviest creature to ever live on Earth

By Sara Kiley Watson

Wildlife officials are taking radical steps to save Florida’s starving manatees

Wildlife officials are taking radical steps to save Florida’s starving manatees

A single humpback whale calf swimming in the waters off of French Polynesia.

We finally know how baleen whales make noise

By Laura Baisas

What does sleep mean for animals?

What does sleep mean for animals?

By Carolyn Wilke/Knowable Magazine

An artist's illustration of a megalogon, which went extinct 3.6 million years ago and are believed to have grown to lengths of 50 feet.

Megalodons were likely warm-blooded, despite being stone-cold killers

By Laura Baisas

A bat sea star on a dark background.

The blueprints for early organs may be hiding in sea stars

By Laura Baisas

Environmental DNA is everywhere. Scientists are gathering it all.

Environmental DNA is everywhere. Scientists are gathering it all.

By Peter Andrey Smith/Undark

Members of the Dutch Tall Ship Oosterschelde wave goodbye from the quay in Rotterdam on August 4, 2023. The Rotterdam ship departs for a two-year world tour that scientist Charles Darwin made two centuries ago.

Mission to recreate Darwin’s scientific Beagle voyage sets sail

By Laura Baisas

a humpback whale breaching the surface of the water with its mouth open

Baleen whales have an ‘oral plug’ to help them guzzle down food without choking

By Kate Baggaley

Paramecium bursaria under a microscope. All creatures whose cells house a nucleus, including Paramecium bursaria, can be traced back to a common ancestor called the Last Eukaryotic Common Ancestor (LECA).

Newfound single-celled hunters may have been Earth’s first-ever predators

By Laura Baisas

A tiny fish is more genetically diverse than we thought. Here’s why that matters.

A tiny fish is more genetically diverse than we thought. Here’s why that matters.

By Brian Owens / Hakai Magazine

robotic buoy floating in ocean

Whale-monitoring robots are oceanic eavesdroppers with a mission

By Charlotte Hu

Whitespotted eagle ray swimming in the ocean.

Scientists test different gear for protecting clams from ‘crunching’ rays

By Laura Baisas

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Painting of a woman in white with a demon sitting on her chest and a ghostly horse to the left.

The creepy science behind sleep paralysis ‘demons’

By RJ Mackenzie

Close up photo of trapdoor spider named after Stephen Colber

Spider named after Stephen Colbert has twice as many chromosomes as you

a touchscreen fabric

Touchscreen shirt shows photos, plays videos, and answers calls

By Mack DeGeurin

Dog paw imprint on piece of Bronze Age mudbrick wall

Dog’s paw print found in a 3,700-year-old brick