Top 10 new species of 2015: Cartwheeling spiders, 'chicken from hell' and a giant stick insect celebrated in the year's first official list (2)

They include a cartwheeling spider discovered in Morocco that has an acrobatic solution to escape danger by spinning away.

Meanwhile, a new species of pufferfish found off the coast of Amami-Oshima in Japan was found to be responsible for creating geometric designs on the sea floor that have baffled marine scientists for decades.

The male fish creates these intricate patterns as nests to attract females.

Also on the list is a feathered dinosaur that lived 66 million years ago that has been nicknamed the 'chicken from hell'.

The 5ft-tall (1.5 metres) and 10ft-long (3 metre) extinct creature was discovered fossilised in rock formations in North and South Dakota. It got its horrifying nickname because it showed a strange mixture of both bird and dinosaur features.

Two of the newly discovered animals also showed unusual parenting habits. One, a frog from Indonesia, gives birth to live tadpoles rather than laying eggs like other amphibians.

These bizarre geometric designs on the sea bed just off the coast of the island of Amami-Oshima in Japan have baffled marine biologists for nearly 20 years, but last year researchers identified a new species of puffer fish had been creating the sand castles as spawning nests