The use of perceptual features in categorization by orangutans ( Pongo abelli )
Inferential reasoning by exclusion in pigeons, dogs, and humans
Learning from others' mistakes in capuchin monkeys ( Cebus apella )
Do chimpanzees learn reputation by observation? Evidence from direct and indirect experience with generous and selfish strangers
Flexibility of cue use in the fox squirrel ( Sciurus niger )
Are ants sensitive to the geometry of tunnel bifurcation?
Smells like sib spirit
Sign- and goal-tracking in Atlantic cod ( Gadus morhua )
Chimpanzee ( Pan troglodytes ) and orangutan ( Pongo abelii ) forethought
Multimodal communication and spatial binding in pied currawongs ( Strepera graculina )
Evidence for counting in insects
Short-term observational spatial memory in Jackdaws ( Corvus monedula ) and Ravens ( Corvus corax )
Discrimination of moving video images of self by pigeons ( Columba livia )
Preference for oddity
Harbour seals ( Phoca vitulina ) can steer by the stars
Learning generalization in problem solving by a blue-fronted parrot ( Amazona aestiva )
Ultra-rapid categorisation in non-human primates