How do frogs and toads detect and capture moving prey?

Frogs and toads (anurans) primarily detect and capture moving prey through a combination of visual perception and specialized anatomical mechanisms.

Detection

Most adult anurans locate their prey by sight. While some species employ an active foraging strategy, many others utilize a "sit-and-wait" technique, remaining stationary until they detect movement within their field of vision.1

Capture

Once prey is detected, anurans capture it using highly specialized tongue mechanisms:

• Lingual Flip: Advanced anurans use a "lingual flip," a process where the tongue is extended, twisted, and inverted to ensnare the target.1
• Sticky Adhesion: The surface of the tongue is sticky, allowing it to adhere to and snatch fast-moving prey, such as insects and other arthropods, with great precision.12
• Anatomical Differences: Unlike some salamanders that project their entire tongue skeleton, frogs typically project only the soft parts of the tongue from the mouth.3
• Exceptions: Aquatic pipids are a notable exception; they lack a tongue entirely and instead use suction to draw food and water into their mouths.1

While larval stages (tadpoles) are generally herbivorous, adult anurans are primarily insectivores, though larger species may consume small vertebrates.12