Animals
Will the woolly mammoth return?
Scientists are using genetic engineering and cloning to try to bring back extinct species or save endangered ones. Here’s how and why.
Biological Evolution: Unity and Diversity
More Stories in Biological Evolution: Unity and Diversity
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AnimalsTiny animals survive 24,000 years in suspended animation
Tiny bdelloid rotifers awake from a 24,000-year slumber when freed from the Arctic permafrost.
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MicrobesExplainer: Virus variants and strains
When viruses become more infectious or better able to survive the body’s immune system, they become a type of variant known as a strain.
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GeneticsJust a tiny share of the DNA in us is unique to humans
Some of these tweaks to DNA, however, may have played a role in brain evolution.
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LifeEven raised by people, wolves don’t tune into you like your dog
Dog puppies outpace wolf pups at engaging with humans, even with less exposure to people, supporting the idea that domestication changed dogs’ brains.
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EarthNew beetle species found in fossil poop of this dino relative
Whole beetles preserved in fossilized reptilian poop suggest that ancient droppings may deserve a closer look.
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FossilsDinosaur families appear to have lived in the Arctic year-round
Fossils of baby dinosaurs in northern Alaska challenge the idea that northern dinosaurs only spent their summers in the high Arctic.
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FossilsAncient creature revealed as lizard, not a teeny dinosaur
CT scans of 99-million-year-old fossils of hummingbird-sized specimens trapped in amber reveal a number of lizardlike features.
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ArchaeologyFossils unearthed in Israel reveal possible new human ancestor
They come from a previously unknown Stone Age group that may represent a complex mashup of early members of our genus Homo.
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AnimalsLet’s learn about dinosaurs’ fearsome neighbors
Dinosaurs may get much of our attention, but there were plenty of other interesting critters during the Age of Reptiles, including our mammal ancestors.