References
13 March 2014, 01:10 AM ET
Cleopatra was an Egyptian queen who is mostly remembered for her love affairs. However, she was a shrewd and powerful ruler.
12 March 2014, 02:47 PM ET
Creatine is a performance-enhancing supplement used by athletes and other people, often in the hope of building muscle. But does creatine work? And is it safe to take? Here's a look at what science has to say about taking creatine.
12 March 2014, 02:33 AM ET
Heroin is an opiate drug and a high potential for abuse.
11 March 2014, 12:35 AM ET
Corn snakes are non-venomous snakes found primarily in the southeastern United States. They are popular as pets.
11 March 2014, 12:28 AM ET
Germans place a high value on hard work, precision and order, and have made tremendous contributions to engineering, classical music and beer. Here is an overview of German customs, traditions and values.
07 March 2014, 01:17 AM ET
Coral snakes are small, vibrantly colored, highly poisonous snakes found in Asia and in the Americas. When threatened, they make a popping sound with their cloacas — essentially a fart.
07 March 2014, 01:13 AM ET
Aspirin is a common pain reliever. Learn how aspirin works, what "baby aspirin" is for, what aspirin's side effects are, and whether you should give aspirin to your dog.
07 March 2014, 12:53 AM ET
Next Generation Science Standards (NGSS) are a set of benchmarks for K-12 science education. The standards encourage students to develop critical thinking skills as well as scientific and mathematic literacy.
04 March 2014, 01:09 AM ET
Albuterol is a prescription medicine prescribed for patients struggling with asthma, emphysema, bronchitis and other lung diseases.
04 March 2014, 01:01 AM ET
Gynecomastia is the growth of breast tissue in males. It's a benign condition that usually results from an imbalance in the sex hormones estrogen and testosterone.
28 February 2014, 06:35 PM ET
Skara Brae is a well-preserved prehistoric village on the west coast of Orkney, Scotland. Visitors can still sit on the furniture in the stone huts.
28 February 2014, 10:47 AM ET
Use this body mass index (BMI) calculator to estimate your body fat and to see if you’re considered underweight, normal, overweight or obese.
27 February 2014, 11:50 PM ET
Augmentin is a prescription antibiotic that is used to treat bacterial infections.
27 February 2014, 12:33 AM ET
Memory involves encoding, storing, retaining and subsequently recalling information and past experiences.
26 February 2014, 12:47 AM ET
Rattlesnakes are found throughout North and South America. Their distinctive rattle warns intruders to stay away!
25 February 2014, 11:55 PM ET
Episodic memory is a person’s unique memory of a specific event; it will be different from someone else’s recollection of the same experience.
25 February 2014, 11:35 PM ET
Guan Yu was a Chinese military general whose martial prowess was so great that, after his death, he was deified as a god.
25 February 2014, 02:16 AM ET
Copperhead snakes are common in North America, and have the distinction of biting more people in the United States than any other snake.
25 February 2014, 01:48 AM ET
Johannes Gutenberg revolutionized printing technology by adapting the presses used for winemaking.
22 February 2014, 03:50 AM ET
The cottonmouth snake, also know as water moccasin, is North America's only poisonous water snake.
22 February 2014, 03:46 AM ET
The Devonian Period occurred from 416 million to 358 million years ago. It is often known as the “Age of Fishes."
22 February 2014, 03:42 AM ET
As the name implies, procedural memory stores information on how to perform certain procedures, such as walking, talking and riding a bike, without having to consciously think about them.
21 February 2014, 10:08 AM ET
Selenium supplements are taken by people who want to prevent cancer, heart disease, memory loss and diabetes. But does taking selenium work? Here's a look at what the science says.
21 February 2014, 03:12 AM ET
These simple plant science experiments will sharpen your little ones’ interest in seeds and plants.
21 February 2014, 03:05 AM ET
The black mamba is one of the fastest and deadliest snakes in the world. Two drops of its venom can kill a person.
21 February 2014, 02:55 AM ET
Lithium medications are used to treat symptoms of bipolar disorder, by possibly preventing episodes of mania.
21 February 2014, 02:41 AM ET
Bariatric surgery is an operation on the stomach and intestine used to treat obesity.
20 February 2014, 12:42 AM ET
Risperdal (generic name risperidone) is an antipsychotic drug prescribed to treat schizophrenia, bipolar disorder and some behavioral problems in children with autism.
20 February 2014, 12:30 AM ET
Cobras are large, venomous snakes with a trademark hood. They hiss and spit and can raise the upper part of their bodies high enough to look you in the eye.
20 February 2014, 12:26 AM ET
Some people in Taos, New Mexico, say they hear an unusual droning sound, or buzzing, or as it has come to be called, the "Taos Hum." Pinpointing its source has not been easy.
19 February 2014, 09:52 PM ET
The Silurian Period occurred from 443 million to 416 million years ago. It was a time of great environmental changes on Earth and saw the first evidence of life on land.
19 February 2014, 01:28 AM ET
The Common Core State Standards Initiative is an effort to prepare every student for college or the workforce.