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.
The rarely seen saola has been photographed in Vietnam for the first time in 15 years.
Also on tap: a baby baboon, a rarely-seen feline, and a red panda on the climb.
Which dolphin type has a new species? What does a fly's face look like up really close? Find out in this week's animal photos.
This week's gallery includes a mole with a flower nose, butterflies trying to be owls, and a supersized moth.
Sloths are so photogenic they have been recruited to serve as animal ambassadors for Suriname, a country in northern South America.