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Wolf Facts: Gray Wolves, Timber Wolves & Red WolvesWolves are large carnivores — the largest member of the dog, or Canid, family. Wolves are common to all parts of the Northern Hemisphere.
land-mammals -
Facts About Gnus (Wildebeests)Wildebeests, also called gnus, are large African antelopes.
land-mammals -
Botulism: Causes, Symptoms & TreatmentBotulism is a rare but serious illness caused by toxins released by bacteria. These toxins are among the most lethal substances known to man.
health -
Keeping Cool: The Science of SweatSweating is the human body’s way to keep cool through the evaporation of liquid released from the sweat glands.
health -
Heat Stroke: Causes, Symptoms & TreatmentHeat stroke is a very serious medical condition that causes at least 240 deaths in the United States each year.
health -
Facts About Sunscreen and Sun ProtectionSunscreen is the best line of defense against skin cancer. However, many people aren't using it correctly.
health -
Sunburn: Causes, Symptoms & TreatmentSunburn is serious. Millions of people in the United States are treated for skin cancer every year.
the-sun -
What is THC?THC is the main mind-altering ingredient found in the Cannabis plant.
medicine-drugs -
Adrenal Glands: Facts, Function & DiseaseThe adrenal glands affect metabolism, blood pressure, the immune system, sex hormones and the body’s response to stress.
anatomy -
Parathyroid Glands: Facts, Function & DiseaseThe parathyroids are four small glands that play a big part in regulating the amount of calcium in the blood.
anatomy -
What Is Estrogen?Estrogens are hormones that that are important for sexual and reproductive development, mainly in women. They are also referred to as female sex hormones.
sex -
Gout: Causes, Symptoms and TreatmentAlso called ‘gouty arthritis,’ gout is a painful form of arthritis caused by too much uric acid in the blood. Learn about causes, symptoms and treatment.
food-drink -
Pituitary Gland: Facts, Function & DiseaseThe pituitary gland is called the master gland of the endocrine system; it controls many other hormone glands in the body.
anatomy -
Testicles: Facts, Function & DiseasesThe testicles are the primary male reproductive organs. They produce gametes, or sperm, and they secrete hormones, primarily testosterone.
anatomy -
Manatees: Facts About Sea CowsThese ocean-dwelling mammals evolved from ancestors that lived on land!
land-mammals -
Facts About MarmosetsMarmosets are the smallest monkeys. They live high in the treetops in South America.
primates -
Facts About NewtsNewts are small semi-aquatic amphibians that possess some interesting characteristics. For example, their skin is toxic and they can regenerate amputated limbs. "Astronewts" have also flown in space.
amphibians -
Facts About Gila MonstersGila monsters are the largest lizards native to the United States and one of only two venomous lizards in the world.
lizards -
Facts About WarthogsWarthogs, as the name implies, are related to pigs, and they have growths on their faces that look like warts.
land-mammals -
Facts About Venus FlytrapsVenus flytraps are carnivorous plants that lure insects and other small animals to their doom.
plants -
Facts About PiranhasPiranhas are South American fish with razor-sharp teeth and a reputation, somewhat undeserved, for feeding frenzies.
fish -
Facts About KiwisThe kiwi is a small, flightless bird native to New Zealand.
land-mammals -
Facts About PorpoisesPorpoises have sleek bodies and large flippers, like their cousins the dolphins. But they are smaller and have different types of fins (or none at all).
marine-mammals -
Facts About MuskratsMuskrats are large aquatic rodents that are usually found in North American wetlands.
land-mammals
