Fantail Goldfish. Ry362, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons. Setting up a tropical fish tank requires careful ...

Should he start a Discus Tank?

Reef fish in different oceans often develop similar color patterns because evolution explores the same set of biological possibilities.

Why does a Caribbean angelfish sometimes resemble its Indo-Pacific cousin, even though they have never lived in the same ocean? Why do coral reefs harbor such a wide range of stripes, spots and ...

A fight between two juvenile tomato anemonefishes of a similar size, filmed in the wild. These highly territorial fish recognize each other by their color patterns and size. Growing up, you probably ...

Tomato clownfish, in response to an unpredictable world, appear capable of adjusting when they lose their stripes based on ...

Growing up, you probably changed your style based on your social influences. It turns out, such pressures affect the appearance of young clownfish (anemonefish) too. A new study from the Okinawa ...

The development of an accurate and sensitive method to screen all telomeric regions has important ramifications for the clinical diagnosis of both constitutional and acquired telomeric abnormalities.

Many mammals have fur the color of brown and black. Why don't they have more exotic colors, like purple and neon pink?

While vanilla Minecraft is amazing all on its own, the game's vast modding community has spent the last decade turning this blocky sandbox into a horror game, a dating sim, and an RPG. They've added ...