By Rebecca Morelle

BBC News

Rare footage of one of the world’s most strange and elusive mammals has been captured by scientists.

See footage of the rare, venomous mammal

Large, and with a long, thin snout, the Hispaniolan solenodon resembles an overgrown shrew; it can inject passing prey with a venom-loaded bite.

Little is known about the creature, which is found in the Caribbean, but it is under threat from deforestation, hunting and introduced species.

Researchers say conservation efforts are now needed.

The mammal was filmed in the summer of 2008 during a month-long expedition to the Dominican Republic – one of only two countries where this nocturnal, insect-eating animal (Solenodon paradoxus) can be found (the other is Haiti).

“It is an amazing creature – it is one of the most evolutionary distinct mammals in the world.” Dr Sam Turvey,Zoological Society of London (ZSL)

The researchers from the Durrell Wildlife Conservation Trust and the Ornithological Society of Hispaniola were able to take measurements and DNA from the creature before it was released.

Dr Richard Young, from Durrell Wildlife Conservation Trust, said:

“My colleagues were excited and thrilled when they found it in the trap. But despite a month’s worth of trapping effort, they only ever caught a single individual.”

Specialised teeth

The Hispaniolan solenodon is one of the creatures highlighted by the ZSL’s Edge of Existence programme, which focuses its efforts on conservation plans for animals that are both endangered and evolutionarily distinctive.

Dr Sam Turvey, a ZSL researcher involved with the programme, told BBC News:

“It is an amazing creature – it is one of the most evolutionary distinct mammals in the world.

“Along with the other species of solenodon, which is found in Cuba (Solenodon cubanus), it is the only living mammal that can actually inject venom into their prey through specialised teeth.

“The fossil record shows that some other now-extinct mammal groups also had so-called dental venom delivery systems. So this might have been a more general ancient mammalian characteristic that has been lost in most modern mammals, and is only retained in a couple of very ancient lineages.”

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Dr Turvey and other scientists working for the Edge Programme recently discovered a population of solenodons living in a remote corner of Haiti.

The researcher said that the team was surprised to find them; previously it had been feared that the creatures had become extinct in this country because of extensive deforestation, recently introduced mongoose and dogs, and hunting by humans for food.

He said:

“They are still incredibly vulnerable and fragile. So it is really important to get back out there to work how how these animals are surviving.”

Conservation efforts are now needed in both Haiti and the Dominican Republic, the teams believe, but the first step would be to find out more about the animal.

Dr Young said:

“We know little about its ecology, its behaviour, its population status, its genetics – and without that knowledge base it is really difficult to design effective conservation.”

The research will be undertaken by ZSL’s Edge Programme, Durrell, the Ornithological Society of Hispaniola, the Audubon Society of Haiti, and the Dominican Republic’s National Zoological Park and Agency for Protected Areas and Biodiversity.

Source:  BBC News