Animals
Spiny Dogfish
This small, spotted shark carries venomous spines, hunts in packs of up to a thousand, and holds a vertebrate record…
Animals
This small, spotted shark carries venomous spines, hunts in packs of up to a thousand, and holds a vertebrate record…
Animals
Male pregnancy, a top speed slower than a garden snail, and a digestive system with no stomach: these bizarre traits…
Animals
With its brightly colored body and stark patterns, the tang makes for an incredibly vivid display in the home. It…
Animals
Hidden among reef rocks and algae, one of the ocean's most venomous families also happens to be a prized culinary…
Animals
Barbs are freshwater fish belonging to a family of 1,780 species. They are popular aquarium fish because of their brilliant…
Animals
Vibrant, fierce, and surprisingly intelligent, the Siamese fighting fish hides a complex life beneath those flowing fins. What makes this…
Animals
These brilliantly colored fish can thrive for a decade in the wild, yet most aquarium owners never discover why captivity…
Animals
Lionfish are a group of carnivorous fish species that are native to the Indian and Pacific oceans. While there is…
Animals
Bigger than a car, smarter than most fish, and friendlier than a golden retriever, these ocean giants have spent 20…
Animals
They cruise the ocean with their mouths stretched wide open, yet these giants pose no threat to anything larger than…
Animals
It swallows license plates, outlasted the dinosaurs, and hunts in the dark where you cannot see it coming. Meet the…
Animals
Fish are found in every ocean, lake, river and stream in all corners of the globe, in many sizes, colours…
Animals
Nicknamed the 'flat shark' for good reason, these boneless ocean gliders carry a secret weapon capable of delivering a fatal…
Animals
Few creatures have earned a more fearsome reputation than the piranha, yet the reality of their behavior, diet, and even…
Animals
One species of hammerhead shark does something no other shark does, and its bizarre rectangular head hides sensory secrets that…
Animals
Behind the cheerful orange-and-white stripes lives a fish that dances with venomous predators, defies the biology of sex, and may…
Animals
The X-Ray Tetra is a small species of schooling fish that is naturally found in the Amazon River’s coastal waters…
Animals
One of the Indo-Pacific's most fearless reef predators hides a surprising vulnerability beneath its tough exterior, and its mating rituals…
Animals
It looks like a coin, shares a family tree with the piranha, and strips aquariums bare of every living plant…
Animals
Ancient, immobile, and brainless, these creatures blur the line between plant and animal in ways that have challenged scientists for…
Animals
Resembling a cross between a reptile and a fish, the gar is a family of long-nosed carnivorous animals that inhabit…
Animals
Locals call it the numb fish, scientists call it a knifefish, and most predators simply call it unapproachable. Beneath its…
Animals
With over 200 species hiding in reef crevices worldwide, these scaleless predators carry biological surprises far stranger than their fearsome…
Animals
Some fish clean parasites off sharks, others swap genders to keep their colonies alive, and a few grow large enough…
Animals
From freshwater puffers to saltwater Takifugu, these fish make use of a variety of adaptations to keep themselves safe from…