Elephants have a keen nose. They have more smell receptors than any mammal – including dogs – and can sniff out food that is several miles away. A new study tests their ability to distinguish between similar smelling plants.
In the U.S. boys are more likely to be diagnosed with autism than girls, but not because they suffer more. There’s growing evidence of a social camouflaging effect among girls with autism that might be preventing them from getting diagnosed.
Dr. Brian Johnston, chief of pediatrics at Harborview Medical Center in Seattle, offers advice to prevent young children from falling out of windows. Harborview sees 40 to 50 children each year for injuries sustained in such falls.
The CDC reports that “dogs bite 4.5 million people” annually. And one particular group of people faces the threat of dog attacks on a daily basis; letter carriers. Each year, more than 6,000 letter carriers will be victims of dog attacks.
From the 20th century to the present, Russia has been the primary beneficiary of American espionage. Here's a look at the most memorable offenders, from Aldrich Ames of the CIA to Robert Hanssen of the FBI.