
Crab Facts: Claws, Shells & Secret Behaviors
Crabs are crustaceans found on every continent with over 7,000 species. Discover why crabs walk sideways, trade shells, and grow claws stronger than jaws.

Ferrets are playful domesticated animals related to weasels. Learn about ferret behavior, care requirements, diet, health needs, and lifespan.
Ferrets are small, energetic carnivores that have been domesticated for over 2,500 years. These playful animals belong to the weasel family and make popular pets due to their curious, social nature.
Adults measure 15 to 24 inches long, including their tails. Hobs typically weigh 3 to 4 pounds while jills weigh 1.5 to 2.5 pounds. Ferrets have 34 teeth designed for a carnivorous diet.
Ferrets are highly social, playful animals with boundless energy when awake. Ferrets are crepuscular, meaning they are most active during dawn and dusk. They sleep 14 to 18 hours per day in short bursts.
Their short digestive tract processes food quickly, typically within 3 to 4 hours. Ferrets need high protein diets with at least 32 to 38 percent animal protein and 15 to 20 percent fat. Ferrets should never eat fruits, vegetables, grains, or dairy products.
The cage should be at least 24 inches by 24 inches by 18 inches tall for one or two ferrets. They are sensitive to heat and can suffer heatstroke above 80 degrees Fahrenheit. Ideal temperature range is 60 to 70 degrees.
Ferrets require annual veterinary checkups and vaccinations. They are susceptible to canine distemper and rabies. Adrenal disease affects over 70 percent of ferrets over age 3.
Ferrets are highly social animals that thrive with ferret companions. Multiple ferrets entertain each other and provide companionship. Most ferrets eventually accept new cage mates.
Ferrets were domesticated over 2,500 years ago, likely in the Mediterranean region.
Romans used ferrets for rabbit hunting, and the practice spread throughout Europe.
Queen Victoria popularized ferret keeping as pets in the Victorian era.
Ferrets helped lay cables through underground conduits before modern methods existed.
Research found ferrets can be trained to detect drugs, explosives, and even diseases in humans.
Studies showed ferrets have complex play behaviors and can learn tricks comparable to dogs.
Scientists use ferrets to study influenza because they catch and spread human flu strains.
Medical research revealed ferrets experience similar sleep patterns to humans, including REM sleep.
Ferrets are the third most popular pet in the U.S. after dogs and cats.
Ferret legging, a competition to hold ferrets in one's trousers longest, originated in Yorkshire.
Ferrets remain illegal as pets in California, Hawaii, and New York City due to ecological concerns.
The black footed ferret became a symbol of endangered species recovery.
Before prairie dog extermination campaigns, black footed ferrets were common across the Great Plains. They specialized in hunting prairie dogs and living in their burrows. Domestic ferrets worked alongside humans for centuries in rabbit hunting and pest control.
Prairie dog poisoning nearly drove black footed ferrets to extinction. The species was twice declared extinct before 18 survivors founded a captive breeding program. Today, reintroduced populations remain vulnerable, while domestic ferrets have transitioned from working animals to popular pets requiring significant care.
Ferrets sleep 14 to 18 hours per day, waking for short bursts of intense activity
The weasel war dance is a ferret behavior involving hopping and twisting that signals happiness
Ferrets have been domesticated for over 2,500 years, originally used for hunting rabbits
A group of ferrets is called a business, while baby ferrets are called kits
Ferrets cannot survive in the wild despite some regulations treating them as invasive threats
Male ferrets can be twice the size of females, weighing up to 4 pounds
Black footed ferrets remain critically endangered despite recovery efforts, with only about 500 in the wild
Ferrets are crucial for influenza research due to their susceptibility to human flu strains
Domestic ferrets face health issues including cancer rates exceeding 90% in older animals
Prairie dog decline threatens black footed ferret recovery since prairie dogs are their primary food
Ferrets require significant time and specialized veterinary care as pets
How much do you know? Take this quick quiz to find out!
Ferrets sleep 14 to 18 hours per day, more than almost any other domesticated animal.
A group of ferrets is called a business, reflecting their busy, curious nature when awake.
Ferrets cannot produce vitamin C and will die without it, like humans and guinea pigs.
Newborn ferrets are so small that an entire litter can fit in a teaspoon.
Ferrets do a 'war dance' when excited, hopping sideways with an arched back and making clucking sounds.
Ferrets were used to run cables through Buckingham Palace and underneath the stage at a Rolling Stones concert.
Ferrets make excellent pets for the right owners. They are playful, social, and bond closely with humans. However, they require significant time, space, and financial commitment. Ferrets need daily supervised playtime, proper diet, and regular veterinary care. They are not suitable for young children without supervision.
This article is reviewed by the Pagefacts team.
Editorial Approach:
This article reveals how ferrets went from ancient rabbit hunting partners to beloved pets and medical research heroes, while chronicling the dramatic twice extinct survival of North America's only native ferret species.
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