Tuatara

Sphenodon punctatus

The Tuatara is a special reptile that looks a bit like a lizard but is actually very different! They have a unique third eye on top of their head.

Habitat: Islands and coastal areas

Appearance

The Tuatara is a medium-sized reptile with a rough, olive-green to grey-brown skin, often speckled. It has a distinctive spiny crest of soft scales running down its back, more prominent in males, and a large, wedge-shaped head with powerful jaws. Its small, beady eyes have a fixed stare.

KingdomAnimaliaPhylumChordataClassSphenodontiaFamilySphenodontidaeGenusSphenodon

Tuatara

Interesting facts

Wow! An adult Tuatara can hold its breath underwater for almost an hour!

Wow! Their unique teeth are fused to their jawbone and can't be replaced if broken!

Wow! Tuatara are the last survivors of an entire ancient reptile group called Rhynchocephalia!

Wow! Tuatara eggs take over a year to hatch, the longest incubation of any reptile!

Special abilities

Tuatara has a light-sensitive 'third eye' on its head that helps them regulate their body temperature and understand day-night cycles.

Tuatara can stay active in colder temperatures than most reptiles because of their slow metabolism, helping them hunt at night.

Tuatara has unique genetic traits that link them directly to prehistoric reptiles, helping scientists understand dinosaur-era life.

Measurements & details

Length: 50-80 cm
Weight: 0.5-1.5 kg
Lifespan: 60-100 years
Top Speed: 2 km/h
Clutch Size: 1-19
Incubation: 365-450 days

Diet & Feeding

These ancient reptiles primarily feast on insects and other small animals found on their island homes.

Age differences: Young tuatara eat smaller insects, while adults can hunt larger prey like lizards and bird chicks.

Primary Foods

beetles
crickets
wētā
spiders
lizards
bird eggs

Foraging Method

Ambush

Ecological connections

hunts

tree wētā

Hemideina crassidens

A large, flightless insect often eaten by tuatara.

shelters

grey-faced petrel

Pterodroma macroptera

Tuatara often share burrows with this seabird.

eaten by

Pacific rat (kiore)

Rattus exulans

Introduced rats were a major threat, preying on tuatara eggs and juveniles.

Traits

Wildlife

Step into the incredible world of wild animals and plants living freely in nature. From tiny insects to towering trees, it's all part of the wild wonders around us!

Insectivorous

Discover clever creatures that specialize in munching on insects, playing a super important role in keeping bug populations in check. They are nature's tiny bug vacuums!

Ancient Lineage

These fascinating organisms carry echoes of the deep past, with ancestors that have roamed the Earth for an incredible span of time. They are living links to ancient worlds!

Longevous

Marvel at organisms that have an incredible capacity to live for a very, very long time, sometimes spanning centuries or even millennia. They are the elders of the natural world!

Coastal

Discover life found along the edges where land meets the sea! These habitats are always changing with the tides and waves, offering unique environments.