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ClimateHow today’s global warming is unlike the last 2,000 years of climate shifts
Temperatures at the end of the 20th century were hotter almost everywhere on the planet than in the previous two millennia.
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LifeThis is the first fungus known to host complex algae inside its cells
In the lab, an alga and a fungus teamed up to exchange food, similar to lichens. But instead of staying outside, the alga moved into the fungal cells.
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NeuroscienceA frog study may point to where parenting begins in the brain
Two brain regions, including one active in mammal parents, lit up with activity in both male and female poison frogs when caring for their tadpoles.