Initially, researchers considered bonobos a subspecies of chimpanzees, referring to them as "pygmy chimpanzees" until they were recognized as a distinct species in 1954. Since then, ongoing research ...

Following the tests, 14 chimpanzees (57.1 percent) reportedly exhibited signs of contagious yawning. The chimps yawned more frequently when the robot’s mouth was fully agape in a yawn.

In the wild, the endangered pygmy hippos live an average of 30-50 years, but on May 25, 2025, Hannah surpassed the previous record of 51 years, 6 months, and 2 days.

Pygmy hippo, Hannah Shirley, at Ramona Wildlife Center. "Anyone who meets Hannah falls in love with her," said Angela Hernandez-Cusick, the facility's wildlife rehabilitation supervisor.

Chimps range across tropical Africa, inhabiting dense rainforest and dry savannah woodland from West Africa to Uganda and Tanzania in the east. The common chimpanzee, along with the pygmy chimpanzee ...

Chimpanzee drumming. Credit: Current Biology /Eleuteri et al. To find out, Eleuteri and her team, including senior authors Catherine Hobaiter of the University of St. Andrews in the UK and Andrea ...

The pygmy chimpanzees “seem to combine calls to convey meaning that cannot be conveyed through single calls alone,” the researchers wrote. Because the genetic lines of humans and bonobos ...

Poppy is nearly four months old and weighs around 80 pounds. According to the zoo, pygmy hippos grow very quickly and by five months, Poppy will be 10 times her birth weight.

Due to their lack-of-popularity globally, pygmy hippos don’t receive targeted funding, unlike elephants, chimpanzees and pangolins in the region. Image courtesy of Taï Hippo Project.

Americans who have fallen in love with Moo Deng no longer need to travel to Thailand to see a baby pygmy hippo in person. Poppy was born on Dec. 9, 2024, to the Metro Richmond Zoo's resident pygmy ...

Born in October 2024, Haggis resides at the Royal Zoological Society of Scotland's Edinburgh Zoo. Pygmy hippos, thought of as the common hippo's smaller cousin, have been endangered since 2016.

A female pygmy hippopotamus calf was born at the Metro Richmond Zoo in early December, marking the third calf of the endangered species to be born at the zoo in the last five years, officials said.