Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. Many of us are familiar with the behaviors of lions. When a ...

Green-rumped parrotlets can be caretakers–or killers. By Laura Baisas Published May 8, 2024 9:41 AM EDT Get the Popular Science daily newsletter💡 Breakthroughs ...

A newly published UC Berkeley-led study compiles nearly 30 years of research and observations of the green-rumped parrotlet, a small South American parrot, and their behavioral patterns of infanticide ...

A green-rumpled parrotlet widow and her nestlings. The behavior of the nestlings — spilling out of the cavity begging for food — indicates that they aren't getting enough food. A team of University of ...

One tiny parrotlet species stops at nothing to pass down its genes, even if that requires it to kill a new mate’s chicks right in the nest 1. Steven Beissinger at the University of California, ...

A green-rumpled parrotlet widow and her nestlings. The behavior of the nestlings — spilling out of the cavity begging for food — indicates that they aren't getting enough food. Disclaimer: AAAS and ...

Infanticide and adoption in the animal kingdom have long puzzled scientists. While both males and females of many species are known to kill the babies of their rivals to secure sexual or social ...