Sleep is one of the most essential parts of being human. Catching some Z’s is important for daily functioning. As adults, we've got to get in about eight hours a day, according to the Sleep Foundation ...

Cracked fish tank? You could fix it. There are a few different possible solutions to make sure that your aquarium gets ...

Subscribe to Marlin magazine and get a year of highly collectible, keepsake editions – plus access to the digital edition and archives. Sign up for the free Marlin email newsletter. As an angler and ...

You’re staring at your aquarium. It’s late. Everything is quiet. And there’s your fish, floating calmly, fins moving slowly, eyes wide open. Are they... asleep? Or just zoning out? Fish don’t come ...

Betta, or Siamese fighting, fish are among "the most popular freshwater aquarium fish in the world," PetMD reports. Native to southeast Asia, this species is known for its range of vibrant hues. There ...

To keep your fish healthy and happy throughout their life, you need to understand the needs of fish in general. There are thousands of fish breeds, and each one requires different care and feeding. It ...

As you sit and watch a goldfish swim in its bowl or a school of fish glide effortlessly through the open sea, you can’t help but imagine what they’d be like as uncomplicated, instinct-driven creatures ...

Scientists have been trying to figure out why fish that normally eat algae are eating the plastic particles that float in the ocean. Those tiny fragments absorb chemicals like PCBs and DDT, and the ...

Editor’s note: The following is an excerpt from What a Fish Knows: The Inner Lives of Our Underwater Cousins by scientist and author Jonathan Balcombe. Do fishes feel pain? While it may seem obvious ...