Newfound evidence reveals that the upsurge of the exotic Nile perch in Lake Victoria had long-lasting effects on the genetic diversity of various local cichlid species, report scientists from Tokyo ...

If you think you have a bottleneck, but it doesn't last very long, then you don't have a bottleneck," said senior study author H. Lisle Gibbs, professor emeritus of evolution, ecology and organismal ...

An ancestral human species faced a startling population bottleneck and teetered on the brink of extinction around 800,000 years ago, according to new research. Reading time 3 minutes Humankind ...

BINGHAMTON, N.Y. -- A new study by an international team of scholars, including faculty at Binghamton University, State University of New York, suggests that Neanderthals experienced a dramatic loss ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American It's been a long century for the Amur, or ...

Pictured on the left is the Nile perch, a voracious predator introduced into Lake Victoria by humans to satisfy meat demands in the 1950s. On the right, several species of endemic cichlids that were ...