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A frilled lizard perched on a branch, its patterned neck frill spread open around its head in orange, grey and cream. Real photograph
Real photograph H. Zell, CC BY-SA 3.0, via Wikimedia Commons · CC BY-SA 3.0

Frilled Lizard

Chlamydosaurus kingii

say it FRILD LIZ-erd

Why we love them

The frilled lizard is a tree-loving reptile from the warm woodlands of northern Australia and southern New Guinea. Most of the time it looks quite plain, coloured grey, brown, or orangey-brown so it can hide against tree bark. Folded neatly around its neck is a big flap of skin called a frill, which usually stays tucked away out of sight.

The frill is this lizard’s most famous trick. If something startles it, the frilled lizard puts on a big show — it opens its bright pink or yellow mouth wide, and the frill springs open like a giant collar all around its head. Suddenly the lizard looks much bigger than before. This clever bluff is just for show, and it helps scare predators away so the lizard can escape unharmed.

Frilled lizards are wonderful climbers and spend more than nine-tenths of their time up in the trees. They mostly come down to catch a meal, to say hello to other lizards, or to travel to a new tree. High in the branches they are safer from many animals on the ground, and their bark-coloured skin helps them stay hidden.

These lizards are insectivores, which means they mainly eat insects along with spiders and other little creepy-crawlies. They wait and watch, then snap up ants, beetles, and other tasty bugs. Eating so many insects helps keep their warm, leafy home healthy and in balance.

When a frilled lizard needs to move quickly, it can do something surprising — it runs on just its two back legs, lifting its front legs and tail up as it dashes to the nearest tree trunk. The good news is that frilled lizards are listed as Least Concern, so there are still plenty of them across their wide range. Looking after their sunny woodlands, and being careful not to take too many for the pet trade, will help keep these show-stopping lizards thriving for years to come.

My home

Tropical savanna, woodland, dry forest

Where I live

Oceania

What I eat

Insects, spiders, other invertebrates

How long I am

0.9 m

How heavy I am

0.6 kg

When a frilled lizard feels worried, it puts on a big show — it spreads a wide, colourful frill of skin around its neck and opens its bright pink or yellow mouth to look much bigger, so predators leave it alone.

Frilled lizards spend more than 90 percent of their time up in the trees, only coming down to find food, meet other lizards, or move to a new tree.

When it wants to hurry away, a frilled lizard can run on just its two back legs, holding its front legs and tail up as it dashes to the nearest tree.

Every frilled lizard can feel happy, scared and loved — just like you.

Looking after my friends

Doing well

There are lots of these animals in the wild right now. That is good news!

You can help by learning their names, keeping wild places clean, and telling someone why this animal matters.

Official status: least concern (IUCN)

Where this came from