Bears preparing for hibernation need to eat as much as they can for the winter. In Alaska, this habit has turned into an Ursine March Madness with bears going head-to-head to see who is the fattest.
A minke whale breaks the surface near Boothbay Harbor in the Gulf of Maine on Aug. 10, 2018. Researchers say warming in the gulf is driving whales into waters farther north where fewer environmental protections exist.
Andrew Caballero-Reynolds/AFP/Getty Images
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Natalie Portman plays an astronaut whose life begins to come undone following her spaceflight in Lucy in the Sky.
Fox Searchlight Pictures
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