Invasive lizards in South Florida reveal rapid evolution in real time

In South Florida, invasive Cuban brown anoles are competing with newly arrived crested anoles from Puerto Rico. This competition is allowing scientists to observe rapid adaptation and evolution in real time, challenging previous beliefs about the pace of evolutionary change. A recent study shows that brown anoles are adapting quickly by developing longer legs, which help them survive better in their new, more dangerous habitats. This adaptation occurs as the crested anoles dominate the territory, pushing the browns to ground levels where they face more predators. Researchers are conducting further studies, including physical tests on the lizards, to understand how these adaptations affect survival. This research highlights the potential for rapid evolutionary changes, providing insights into how species adapt under pressure.