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Antibiotics Killed Swiss Captive Dolphins

Antibiotics Killed Swiss Captive Dolphins

An evaluation by the Institute for Veterinarian Pathology has revealed that the use of antibiotics...
WDCS Condemns Use Of Dolphins As A Military Resource

WDCS Condemns Use Of Dolphins As A Military Resource

A retired US Admiral has gone on record recently confirming that the US Navy has...
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Norway Calls For More Whalers To Halt Declining Industry

Just 19 ships took part in Norway’s annual whale hunt last year, a remarkable drop...
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¿Quién Dijo Que Ballenas Y Delfines No Pueden “jugar” Juntos?

Queremos compartir contigo estas maravillosas imágenes que nos demuestran una vez más, lo maravillosas y...

Pygmy sperm whale fossils shed light on whale evolution

Fossils found in Panama from a newly-discovered extinct species of pygmy sperm whale have cast new light on how modern day whales evolved.

Scientists from the National History Museum in Los Angeles, writing in the scientific journal PLOS ONE, analysed the skulls of two whales found in rocks in a sea cliff. The rock layer is thought to be about 7 million years old. They discovered that the skulls of these whales had larger a spermaceti organ than their modern day relatives, though it is not yet known why it shrunk over time. The organ is found in the head and plays a key role in the generation of sound and in the whale’s use of echolocation.

“The new discovery gives us a better understanding of the ancient distribution of these poorly known relatives of the sperm whale,” said lead scientist, Dr. Jorge Velez-Juarbe. The new whale species has been named Nanokogia isthmia after the Isthmus of Panama.

The spermaceti organ contains a waxy liquid that was highly sought after by whalers and led to the death of hundreds of thousands of sperm whales (a distant relative of pygmy sperm whales) during the 18th, 19th and 20th centuries. The oil was used in everything from candles and cosmetics to engines in luxury cars.