No Filter: Ancient Whales Were Wolves of the Sea

Posted on Categories Discover Magazine

My, what sharp teeth you have, Janjucetus. New research finds ancient whales like “The Juce” here had dentition more similar to land carnivores than today’s filter-feeders. (Credit: Nobu Tamura/Wikimedia Commons) The biggest animals on the planet right now are baleen whales, which upped their size thanks to efficient filter-feeding. How they got that specialized system has long been a mystery, but a new study nixes some theories about it evolving out of ancient ...read more

FDA Raids Immunotherapy Clinic, Seizes Smallpox Vaccine

Posted on Categories Discover Magazine

(Credit: REDPIXEL.PL/Shutterstock) The FDA has seized vials of smallpox vaccine from a California immunotherapy company, claiming they had been used for an unauthorized cancer treatment. StemImmune markets an unapproved treatment for cancer involving stem cells and a type of virus commonly used to inoculate against smallpox. The virus, vaccinia, is an attractive option because it’s good at getting into cancerous cells and can be genetically tweaked to improve effectiveness. It’s no ...read more

Why Sheep Calls Have That Unmistakable Vibrato

Posted on Categories Discover Magazine

(Credit: Baronb/Shutterstock) Animals from sheep to fur seals share a curious acoustic trait: Their calls feature a vibrato-like trill. Vibrato is the small, quick oscillation in pitch that musicians use to accentuate certain notes. It makes a note sound a bit wobbly and helps catch our attention. It’s found all over the animal kingdom, too — think the staccato “baaaaa’s” of a goat. But animals’ pulsating cries are far more than stylistic. A new study f ...read more