Chirostenotes was a bird-like dinosaur with a toothless beak, slender claws and long, powerful legs.
Chirostenotes lived alongside Euoplocephalus in a landscape of fast-flowing rivers and forests.
Chirostenotes is thought to have heard low frequency sounds just like birds today.
Chirostenotes did not have teeth. Instead it had a toothless beak, just like a bird.
Although many theropod dinosaurs had a well developed sense of smell, oviraptorosaurs like Chirostenotes seem to have lacked this due to their more herbivorous/omnivorous diet.
The discovery of Chirostenotes has been quite a long-winded affair. The first fossils to be uncovered – by George Sternberg in 1914 – were the animal's hands. A few years later, its feet were discovered, though these were mistakenly attributed to another dinosaur, Macrophalangia. Chirostenotes' jaws were found a few years after that and attributed to Caenagnathus. Then in 1988, Philip Currie and Dale Russell found a specimen in storage which helped link all the previous discoveries together as fossils of Chirostenotes.
Height: 1.5m (4.92ft)
Length: 4m (13.12ft)
Weight: 99.79kg (220lbs)
Top speed: 60kph (37.3mph)
Vision: Theropods are thought to have had excellent vision. Chirostenotes had large eye sockets and a bird-like brain, hinting at particularly sharp vision.
Skin: Chirostenotes had feathers, which are likely to have been concentrated around their tails and arms. These would have been used for brooding young and displaying to mates or competitors.
Brain: Chirostenotes was closely related to birds and would have shared their complex behaviour. They would have been some of the more intelligent dinosaurs.
Prey: With a toothless beak, gastroliths (possibly) in its gut and sharp predatory claws, it is likely Chirostenotes ate a mixture of different foods, including small reptiles, mammals, plants, eggs and insects.
Bite: Chirostenotes had no teeth. Instead it had a beak and an elongated second finger, which some scientists believe was used to probe for grubs and armoured amphibians.
Nest: Oviraptorosaurs like Chirostenotes laid eggs in nests. They laid their oval eggs in pairs with the more pointed end orientated towards the centre of the nest.