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Mammoths made up as much as 40 percent of the ancient North Americans’ diet, a chemical analysis of human remains reveals.

Without a fungal support network, trees can lose their ability to adapt to changing climatic conditions, increasing their extinction risk.

The footage give clues to the range of plants the bears eat and how they mate, information important for conservation.

An experiment reveals that a bio-solution to humans’ microplastics mess is likely to fall short, but could inspire other ways to attack the problem.