fish

Tag archives for fish

Pigeons on the menu for some catfish

I came across this interesting video today from Animal Wire that shows a population of catfish caught hunting pigeons on land: Who knew that catfish had more in common with cats than just their whiskers.

Fabled sea serpents do exist!!

A guide from the Catalina Island Marine Institute discovered the carcass of an oarfish (Regalecus glesne) off the coast of Catalina Island this week. Oarfish are the longest bony fish (reports up to ~50 feet long) in the ocean. Because oarfish live deep in the ocean, there have been limited studies on their physiology or…

233,000 gallons of molasses has leaked from a pipeline near the shore of Honolulu suffocating thousands of fish. The pipeline is used to load molasses onto ships. Officials have warned people to stay out of the water as sharks may be attracted to the area. The Hawaii Department of Health is working on removing the…

  A recent article posted in the BBC News provided a good explanation of why scientists commonly study these organisms as models for human diseases and conditions. Model organisms are chosen because their physiology is similar to other animals, including humans, in addition to other reasons: Visit the BBC News to see why researchers most often use flies, fish, mice and worms…

Dr. Tomas Brodin (Umea University, Sweden) and colleagues have discovered that trace amounts of the drug oxazepam that ends up in rivers and streams (from toilets) greatly effects local fish. The drug is used to treat anxiety in humans and also calms fish. However, for wild perch, which normally hunt in schools, the antisocial effects of the drug in fish…

Fish water jet

Check out this video of an archer fish (Toxotes jaculatrix) shooting down prey by creating a water jet: Here it is again in slow motion: Until now, the mechanism by which the archer fish produces such a powerful jet of water was a mystery. Contrary to prior hypotheses, the fish do not have specialized internal…

Animal Magnetism – Part II

In a prior blog, we talked about different animals that are able to sense the Earth’s magnetic field. The mystery of how fish, and perhaps other animals, do this may be solved. Animals use the magnetic field like a compass. This is an important skill especially to migratory species who don’t have the benefit of Google…

The 10 winning images from the inaugural Bio-Art competition hosted by the Federation of American Societies for Experimental Biology (FASEB) were announced last week. Here are my favorites:    Closely related species of electric fish with recordings of their electric organ discharge. This organ is used for communication and prey location, similar to echolocation used…