TERATOLOGY: Conjoined Grey Whales Found in Mexico (Via Simon Reames)

"Exceptionally rare" conjoined whale twins have been found dead in a lagoon in Mexico. Fishermen found the grey whale calves in the Ojo de Liebre lagoon in the Baja California peninsula, which opens up to the Pacific Ocean. The four-metre (13 feet) long creatures, which weighed nearly half a tonne, were linked at the mid-section.

They had two full heads and tail fins, according to Benito Bermudez, a marine biologist and regional manager at the National Natural Protected Areas Commission. Mr Bermudez said the discovery was "without any precedent" in the region, which is in the north-west of the country. It is believed the whales were born as the result of a miscarriage and did not survive for long.

Scientists were examining the carcasses and plan to look for other cases in the animal's habitat off the peninsula.

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