Eating
The muscles on the tip of a chameleon's tongue provide suction that
traps prey.The muscles on the tip of a chameleon's tongue provide suction that
traps prey. Chameleons spend most of their lives in bushes or trees, where they can
hide from predators and wait for food. They’re unique among lizards because
they have zygodactylous toes, meaning their feet can grip tree trunks and
limbs. Their prehensile tails also wrap around branches to anchor them as they
hunt, rest and eat.
Prey
Hatchlings and adult chameleons eat essentially the same foods, although
older and larger animals can consume bigger prey. Common meals include
cockroaches, crickets, grasshoppers, stick insects and other bugs, as well as
spiders. In some of the biggest species, such as Meller’s chameleon, which can
grow to nearly two feet, adults even dine on their fellow lizards, small birds
and, in captivity, baby mice. A few species supplement their insect diet with
flowers and leaves; for example, veiled chameleons, which live in deserts,
absorb water by eating plants.
Hunting
Because they move very slowly, chameleons don’t stalk and pounce on
their prey. Instead, they wait until prospective meals venture close enough to
catch. Chameleons’ green or brown coloring helps hide them among leaves and
branches, so they can ambush their prey. (They don’t alter their colors to
blend in with their surroundings, but rather to communicate with each other.)
Eyes
To help them spot prey, chameleons possess eyes that can operate
separately from each other and swivel around, providing a 360-degree view. This
enables the chameleons to track insects and other small animals while remaining
nearly motionless. When they’re ready to strike, they turn both eyes on the
prey so they can gauge depth and distance accurately.
Tongues
Chameleons catch dinner using their sticky tongues, which can be as long
or even longer than their bodies, depending on the species. A chameleon’s
tongue can whip out at a speed reaching 1640 feet per second. Once it fastens
to prey, the tip of the tongue serves as a suction cup, pulling the food into
the chameleon’s mouth. The lizard then grinds the meal between its jaws.
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