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Animals

Watch the first video of a sperm whale birth captured by scientists

In a sperm whale birth recorded in more intimate detail than ever before, local whales huddled around the mother and lifted the calf to the surface.

Physics

Water has a newfound ‘critical point’ that may help explain its quirks

At cold temperatures, water has two different liquid phases, which become one at the critical point. The discovery could help explain water’s quirks.

Paleontology

Early apes may not have evolved in East Africa

Fossil jaw remains found in Egypt suggest that the earliest modern apes evolved in North Africa, not in East Africa where most fossils have been found.