Enough oxygen long before animals rose

Oxygen is crucial for the existence of animals on Earth. But, an increase in oxygen did not apparently lead to the rise of the first animals. New research shows that 1.4 billion years ago there was enough oxygen for animals ...

Estuaries protect Dungeness crabs from deadly parasites

Parasitic worms can pose a serious threat to the Dungeness crab, a commercially important fishery species found along the west coast of North America. The worms are thought to have caused or contributed to the crash of the ...

Did seaweed make us who we are today?

Millions of years ago something happened, allowing early Homo sapiens to branch out from the primitive hominoid family tree. Was this crucial turn in human evolution partly driven by seaweed and its particular content of ...

Carnivourous dinosaurs strolled around in Germany

142 million years ago two carnivorous dinosaurs strolled along the beach in what is now Germany. Their footprints fossilized and have been analyzed by a biologist who now provides insight into the two hunters' daily life.

Melting sea ice may lead to more life in the sea

When spring arrives in the Arctic, both snow and sea ice melt, forming melt ponds on the surface of the sea ice. Every year, as global warming increases, there are more and larger melt ponds.

Which animals can best withstand climate change?

Extreme weather such as prolonged drought and heavy rainfall is becoming more and more common as the global average temperature rises—and it will only get worse in the coming decades. How will the planet's ecosystems respond?

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