« previous next »
« previous next »
 

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Classification of life histories based on juvenile survival, fecundity, and age at reproductive matu Classification of life histories based on juvenile survival, fecundity, and age at reproductive matu
A juvenile blue whale with its mother A juvenile blue whale with its mother
Police officers take aim during the riots that swept through the Watts section of Los Angeles in ... Police officers take aim during the riots that swept through the Watts section of Los Angeles in ...
The rates of police reported sexual offences The rates of police reported sexual offences
Video: Sister chromatids of a metaphase chromosome animation

For a complete list of videos, visit our video library