Hummingbirds are remarkably successful little birds with a long and colorful history.
Get up close and personal with bees, flies and more, in these insect portraits.
The newest member of the National Zoo's panda family charmed zoo visitors on Saturday.
This week's gallery puts animal loyalty on display, and even has a young white lion's first Christmas.
Smart reptiles with newly discovered hunting wiles, and jousting seals that know when to cut and run, also come along for the ride.
A cancerous great white shark and a panda bear on its naming day also make appearances in this week's gallery.
This week's gallery also features lions getting an early Christmas and a frog in grave danger.
Other animals striking a pose include a smart poison-dart frog, wild parrots in Germany, and a sea slug with a bizarre twist to its mating life.
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