Western banded geckos don’t look like impressive predators. So how do they take down scorpions?
Western banded geckos don’t look like they’d win in a fight. Yet this unassuming predator dines on venomous scorpions, and a field study published in the MarchGeckos bite the scorpion and thrash their heads and upper bodies back and forth, body-slamming the scorpion against the ground, new high-speed video reveals. “The behavior is so fast that you can’t see what’s actually happening,” says San Diego State University biologist Rulon Clark.
Clark first noticed the behavior in the 1990s, during undergraduate fieldwork in the Sonoran Desert near Yuma, Ariz. When he returned with colleagues to , the team filmed geckos as well. The researchers captured western banded geckos and dune scorpions in the desert at night , and documented the showdowns.Normal gecko feeding behavior usually involves lunging out, grabbing prey with their mouth, and chomping it, says Clark. With scorpions, it’s totally different after the initial lunge. Such shake feeding is a known method for carnivores and adventurous eaters.
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