Tag Archive for 'Pongo pygmaeus'

Loui, the juvenile male orangutan, uses the core as an active element to vertically strike on the concrete floor of the testing room. Image credit: Motes-Rodrigo et al., doi: 10.1371/journal.pone.0263343.

Scientists Investigate Stone Tool Making and Using Abilities in Orangutans

Feb 17, 2022 by News Staff

Early stone tools represent one of the most important technological milestones in human evolution. The production and use of sharp stone tools significantly...

Padana, a female orangutan at Leipzig Zoo, continued to use wooden hammers to crack nuts for some time after the end of the study. Image credit: Claudio Tennie.

Orangutans Observed Using Hammer Tools to Crack Nuts

Sep 1, 2021 by Natali Anderson

New research from the University of Tübingen demonstrates that nut-cracking can emerge in Sumatran (Pongo abelii) and Bornean (Pongo pygmaeus) orangutans...

A male Bornean orangutan (Pongo pygmaeus) eating non-fruit vegetation instead of the fruit orangutans prefer on the island of Borneo. Image credit: Kristana Parinters Makur / Tuanan Orangutan Research Project.

Study: Orangutans Lose Muscle Mass during Episodes of Fruit Scarcity

May 13, 2021 by News Staff

Wild Bornean orangutans (Pongo pygmaeus) catabolize muscle tissue when the availability of fruit is low, according to new research led by Rutgers University...

Pika et al. conducted the first systematic, quantitative large-scale assessment of physical and social cognitive performance of common ravens (Corvus corax) with a special focus on development. Image credit: Ralph Capri23auto.

4-Months-Old Ravens Parallel Great Apes in Cognitive Skills, Study Shows

Dec 15, 2020 by News Staff

By 4 months of age, the cognitive performance of common ravens (Corvus corax) in experimental tasks is similar to those of two great ape species, chimpanzees...