Great Uncle Salamander

They feed on fish, worms, insect larvae, anurans, crustaceans, molluscs, reptiles and small mammals. Edge fellow Fang Yan shares news of an initiative to help the recovery of wild Chinese giant salamander For each key category of conservation action, we calculated a conservation attention score based on expert information.

In this graph, a higher score means the action is being carried out more intensively over more of the species range.

The colour shows how important each action is considered to be for the conservation of this species. We combined all of the expert information on conservation actions to calculate an overall conservation attention score for this species. Recent studies have grouped all possible conservation activities for any species into nine key categories Washington et. For each action we used these two pieces of information to calculate the conservation attention score per action.

We then combined the scores for all actions into an overall conservation attention score for the species. The experts also judged how important each category was to the conservation of that particular species. This wordcloud illustrates the threats facing this species. The size of each word indicates the extent of a species range that is affected by that threat larger size means a greater area is affected. The colour of the word indicates how much that threat impacts the species darker shades of red mean the threat is more severe.

Review terms and conditions page for details. In Japan, their natural habitats are threatened by dam-building.

Ramps and staircases have been added to some dams to allow them to move upstream to areas where they spawn. The Japanese giant salamander has lived for as long as 52 years in captivity.

The Chinese giant salamander eats aquatic insects, fish, frogs, crabs, and shrimp. As they have poor eyesight, they use sensory nodes on their heads and bodies to detect minute changes in water pressure, enabling them to find their prey. During mating season, the salamanders travel upstream, where the female lays two strings of over eggs each.

The male fertilizes the eggs externally by releasing his sperm onto them, and then guards them for at least three months, until they hatch.

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Once ready, they hunt as a group rather than individually. Scientists at Hiroshima City Asa Zoological Park in Japan have recently discovered the male salamander will spawn with more than one female in his den.

On occasion, the male "den master" will also allow a second male into the den; the reason for this is unclear. From Wikipedia, the free encyclopedia. Giant salamanders Temporal range: Bathonian - Present Information on amphibian biology and conservation.

Andrias davidianus

Retrieved 13 December As Alfredo can communicate with the salamander by singing, so he can communicate with the fires in the caldera. In his turn he will be master of the mountain, but at what cost he deduces only gradually. Giorgio's wish for an heir is more than a desire to see his line continued.

Blasted by radiation, his own seed has been corrupted - his one son is a living reminder of this corruption.

Alfredo, with his ability to father sons of his own - so nearly lost to the cathedral choir - is Giorgio's passport to immortality. Alfredo's salvation lies in his upbringing by good people - a father who directed his affinity with fire into building bake-ovens. His intellectual curiosity is tempered by his humanity, fellow-feeling with the rejected cousin and with the salamander, torn from the mountain's fire and weeping in its captivity. Giorgio's answer leaves us wondering how close mankind has come to finding out: