References
22 November 2013, 06:17 PM ET
Wolf spiders are large hunting spiders that exhibit unique parenting habits.
22 November 2013, 04:25 PM ET
Ununoctium — Element 118: Properties, sources and uses.
22 November 2013, 04:16 PM ET
Ununseptium — Element 117: Properties, sources and uses.
22 November 2013, 04:07 PM ET
Livermorium — Element 116: Properties, sources and uses.
21 November 2013, 07:37 PM ET
Huntsman spiders are long-legged predators that hunt down their prey. One species of huntsman spider has a leg span of 12 inches — or as big as a dinner plate.
21 November 2013, 05:47 PM ET
Ununpentium — Element 115: Properties, sources and uses.
21 November 2013, 05:22 PM ET
Flerovium — Element 114: Properties, sources and uses.
21 November 2013, 04:40 PM ET
Ununtrium — Element 113: Properties, sources and uses.
20 November 2013, 06:16 PM ET
Copernicium - Element 112: Properties, sources and uses.
19 November 2013, 07:14 PM ET
Ley lines supposedly circle the globe, connecting monuments and sacred sites with undetectable "earth energies."
19 November 2013, 07:08 PM ET
Prednisone is a medication aimed at treating symptoms of inflammation, allergies and chronic conditions.
19 November 2013, 07:04 PM ET
Roentigenium — Atomic number 111: Properties, sources and uses.
19 November 2013, 05:47 PM ET
The Incas built a vast empire without the wheel, powerful draft animals, iron working, currency or a writing system.
18 November 2013, 11:44 PM ET
Carstensz Pyramid rises 16,024 feet above the Indonesian jungle. It is the highest island peak in the world.
18 November 2013, 11:38 PM ET
What makes you, you? Psychologists use five major traits to sketch out personality types.
18 November 2013, 06:17 PM ET
Darmstadtium — Atomic No. 110: Properties, sources & uses.
18 November 2013, 06:04 PM ET
Meitnerium — Atomic No. 109: Properties, sources & uses.
15 November 2013, 06:24 PM ET
Asthma is a condition in which a person's airways are inflamed, which can cause coughing, wheezing and shortness of breath.
13 November 2013, 08:56 AM ET
Tramadol is a prescription medication used to treat pain.
11 November 2013, 05:40 PM ET
Mount Vinson is the eighth-highest mountain in the world.
08 November 2013, 06:35 PM ET
A spinal cord injury is caused by damage to parts of the spine.
08 November 2013, 06:16 PM ET
The Coral Castle in Florida is an amazing feat of engineering.
07 November 2013, 06:04 PM ET
Homo erectus was an ancient human ancestor that lived roughly between 2 million and 100,000 years ago.
06 November 2013, 06:38 PM ET
Adderall is a prescription medication used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.
01 November 2013, 06:49 PM ET
The blending of history and legend has created a distorted image of the Jamestown leader, especially with the story of his rescue by Pocahontas.
01 November 2013, 06:04 PM ET
Mount Elbrus is in the Caucasus Range, the mountains that separate Europe and Asia.
01 November 2013, 05:54 PM ET
A GMO is an organism that has had its DNA altered or modified in some way through genetic engineering.
01 November 2013, 05:47 PM ET
Type 2 diabetes is the most common form of diabetes, a condition characterized by high blood sugar levels.
31 October 2013, 09:10 AM ET
Though Dracula may seem like a singular creation, Stoker in fact drew inspiration from a real-life man with an equally disturbing taste for blood: Vlad III, Prince of Wallachia or — as he is better known — Vlad the Impaler (Vlad Tepes).
30 October 2013, 01:36 PM ET
Obsessive compulsive disorder, or OCD, is a mental disorder characterized by recurrent and persistent thoughts (obsessions) and ritualistic behaviors (compulsions) that interfere with a person's daily life and relationships.
30 October 2013, 12:47 AM ET
Voodoo is a sensationalized pop-culture caricature of voudon, an Afro-Caribbean religion originating in Haiti.
30 October 2013, 12:32 AM ET
The Sistine Chapel in the Vatican is renowned for its Renaissance art, especially the ceiling painted by Michelangelo.