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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.
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Facts About Gnus (Wildebeests)Wildebeests, also called gnus, are large African antelopes.
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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.
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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.
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Heat Stroke: Causes, Symptoms & TreatmentHeat stroke is a very serious medical condition that causes at least 240 deaths in the United States each year.
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Facts About Sunscreen and Sun ProtectionSunscreen is the best line of defense against skin cancer. However, many people aren't using it correctly.
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Sunburn: Causes, Symptoms & TreatmentSunburn is serious. Millions of people in the United States are treated for skin cancer every year.
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What is THC?THC is the main mind-altering ingredient found in the Cannabis plant.
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Adrenal Glands: Facts, Function & DiseaseThe adrenal glands affect metabolism, blood pressure, the immune system, sex hormones and the body’s response to stress.
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Parathyroid Glands: Facts, Function & DiseaseThe parathyroids are four small glands that play a big part in regulating the amount of calcium in the blood.
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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.
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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.
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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.
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Testicles: Facts, Function & DiseasesThe testicles are the primary male reproductive organs. They produce gametes, or sperm, and they secrete hormones, primarily testosterone.
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Manatees: Facts About Sea CowsThese ocean-dwelling mammals evolved from ancestors that lived on land!
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Facts About MarmosetsMarmosets are the smallest monkeys. They live high in the treetops in South America.
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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.
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Facts About Gila MonstersGila monsters are the largest lizards native to the United States and one of only two venomous lizards in the world.
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Facts About WarthogsWarthogs, as the name implies, are related to pigs, and they have growths on their faces that look like warts.
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Facts About Venus FlytrapsVenus flytraps are carnivorous plants that lure insects and other small animals to their doom.
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Facts About PiranhasPiranhas are South American fish with razor-sharp teeth and a reputation, somewhat undeserved, for feeding frenzies.
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Facts About KiwisThe kiwi is a small, flightless bird native to New Zealand.
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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).
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Facts About MuskratsMuskrats are large aquatic rodents that are usually found in North American wetlands.
