Surprisingly, he occasionally feasted on a piece of tender meat.
The six present-day sloth species are all relatively small, vegetarian and especially very lazy arboreal...
Muscle strands on the shoulder made pterosaurs more aerodynamic. (Image: Alex Boersma)
When pterosaurs took to the skies, their physique apparently offered them an...
Birds evidently avoid not only the conspicuous caterpillars on St.Jameswort (right), but also the yellow-flowered plants themselves (left). (Images: Callum McLellan)
"You should avoid...
Warmer oceans will cause many plankton species to seek refuge around the poles, displacing other species, researchers suspect.
The ocean is teeming with microscopic plants...
The aviation industry is still far too polluting. But scientists are proposing a – literally – 'green' alternative.
Most planes are still powered by...
Charles Darwin is and will remain the symbol for the exploration of the development of life. (Image: dan_wrench / iStock)
The venerable Charles Darwin...
Tree litter frog Phrynobatrachus guineensis (Image: Mark-Oliver Rödel / Museum für Naturkunde Berlin)
How long does it take for a forest to recover from deforestation...