More than 6 million birds die every year as they migrate from the United States and Canada to Central and South America, according to a new study published Apr. 25 in the open access journal PLoS ONE.

Burmese pythons, which have already been observed attacking birds in the Florida Everglades, have now been seen eating those birds' eggs directly from the nest, according to new research from the Smithsonian Institution.

The origin of the exquisitely complex vertebrate brain is somewhat mysterious.

Access and AffordabilityNot all pet owners are aware that low-cost generics are widely accessible. In fact, 61 percent of dog owners are unaware lower cost, generic pet preventive medications exist at their retail pharmacy.