Animals
Whale Shark
The ocean's largest fish swallows hundreds of gallons of seawater in a single gulp, lets divers hitch rides on its…
Animals
Animals
Molly
First identified by naturalists during the 1820s, Molly fish are American fish that are primarily found in the wild in…
Animals
Barb
Barbs are freshwater fish belonging to a family of 1,780 species. They are popular aquarium fish because of their brilliant…
Animals
Betta Fish (Siamese Fighting Fish)
Vibrant, fierce, and surprisingly intelligent, the Siamese fighting fish hides a complex life beneath those flowing fins. What makes this…
Animals
Tetra
These brilliantly colored fish can thrive for a decade in the wild, yet most aquarium owners never discover why captivity…
Animals
Guppy
The Guppy fish, with their colorful designs and feathery tailfins, are favorites with people who keep freshwater aquariums. Guppies are…
Animals
Pike Fish
Lurking motionless among the weeds, this ancient apex predator can turn stillness into explosive violence in a fraction of a…
Animals
Cichlid
With over 3,000 species spanning tiny 2-inch dwarfs to 3-foot giants, these freshwater fish have developed survival strategies so bizarre…
Animals
Butterfly Fish
With over 115 species blazing through coral reefs in patterns so vivid they can confuse predators and signal partners from…
Animals
Catfish
From venomous spines to electric shocks to walking on land, this ancient order of fish has evolved some of the…
Animals
Flounder
With its remarkably thin body, the flounder fish truly lives up to the name of flatfish. Lying almost motionless along…
Animals
Spiny Dogfish
This small, spotted shark carries venomous spines, hunts in packs of up to a thousand, and holds a vertebrate record…
Animals
Seahorse
Male pregnancy, a top speed slower than a garden snail, and a digestive system with no stomach: these bizarre traits…
Animals
Tang
With its brightly colored body and stark patterns, the tang makes for an incredibly vivid display in the home. It…
Animals
Scorpion Fish
Hidden among reef rocks and algae, one of the ocean's most venomous families also happens to be a prized culinary…
Animals
Lionfish
Lionfish are a group of carnivorous fish species that are native to the Indian and Pacific oceans. While there is…
Animals
Manta Ray
Bigger than a car, smarter than most fish, and friendlier than a golden retriever, these ocean giants have spent 20…
Animals
Basking Shark
They cruise the ocean with their mouths stretched wide open, yet these giants pose no threat to anything larger than…
Animals
Tiger Shark
It swallows license plates, outlasted the dinosaurs, and hunts in the dark where you cannot see it coming. Meet the…
Animals
Fish
Fish are found in every ocean, lake, river and stream in all corners of the globe, in many sizes, colours…
Animals
Stingray
Nicknamed the 'flat shark' for good reason, these boneless ocean gliders carry a secret weapon capable of delivering a fatal…
Animals
Piranha
Few creatures have earned a more fearsome reputation than the piranha, yet the reality of their behavior, diet, and even…
Animals
Hammerhead Shark
One species of hammerhead shark does something no other shark does, and its bizarre rectangular head hides sensory secrets that…
Animals
Clownfish
Behind the cheerful orange-and-white stripes lives a fish that dances with venomous predators, defies the biology of sex, and may…
Animals
X-Ray Tetra
The X-Ray Tetra is a small species of schooling fish that is naturally found in the Amazon River’s coastal waters…
Animals
Gar
Resembling a cross between a reptile and a fish, the gar is a family of long-nosed carnivorous animals that inhabit…
Animals
Electric Eel
Locals call it the numb fish, scientists call it a knifefish, and most predators simply call it unapproachable. Beneath its…
Animals
Moray Eel
With over 200 species hiding in reef crevices worldwide, these scaleless predators carry biological surprises far stranger than their fearsome…
Animals
Wrasse
Some fish clean parasites off sharks, others swap genders to keep their colonies alive, and a few grow large enough…
Animals
Grey Reef Shark
One of the Indo-Pacific's most fearless reef predators hides a surprising vulnerability beneath its tough exterior, and its mating rituals…
Animals
Silver Dollar
It looks like a coin, shares a family tree with the piranha, and strips aquariums bare of every living plant…
Animals
Sponge
Ancient, immobile, and brainless, these creatures blur the line between plant and animal in ways that have challenged scientists for…
Animals
Pufferfish
From freshwater puffers to saltwater Takifugu, these fish make use of a variety of adaptations to keep themselves safe from…