Released or escaped parrots are now living in most states and are breeding in at least 21. For some, it’s a second chance at survival.
Algorithms learned to sift ultrasonic rat squeaks from other noise, which could help researchers who study rodents’ emotional states. Lucy Huang reports.
Snake venom toxicity depends on snake size, energy requirements and environmental dimensionality more than on prey size.
Ants infected with fungal pathogens steer clear of other cliques within the colony—avoiding wider infection, and allowing for a sort of immunity. Lucy Huang reports.
Subject who saw a Superman poster were more likely to offer help than were people who saw another image.
An estimate of dog intelligence requires looking at non-dogs as well to understand what's special to canines and what is just typical of the taxonomic groups they're in.
People who had a conflict in a given day but also got hugged were not as affected by the negative interaction as were their unhugged counterparts.
English as-a-first-language Canadian study subjects were less trusting of statements in English spoken with a foreign accent, unless the speaker sounded confident about their assertion.