The Atala butterfly (Eumaeus atala) and its five closest relatives in the genus Eumaeus display their toxicity. This sextet's toxicity comes from what they eat as caterpillars: plants called cycads that have been around since before dinosaurs roamed the Earth and contain a potent liver toxin called cycasin. New research published in the Feb....
A Galápagos Toroise. Credit: Alexander Forryan New research has unlocked the mystery of how the Galápagos Islands, a rocky, volcanic outcrop, with only modest rainfall and vegetation, is able to sustain its unique wildlife habitats. The Galápagos archipelago, rising from the eastern equatorial Pacific Ocean some 900 kilometres off the South American mainland, is...
Credit: CC0 Public Domain According to many medical experts, reduced social mobility—defined here as social contact and travel within and among communities—is a necessary factor to contain the spread of COVID-19. Joshua Clinton, professor of political science at Vanderbilt University, led a team of researchers to analyze data from more than one million US...