A: Bob says: I think it’s worth bearing in mind that many of the high end aquascapes that feature in magazines and elsewhere, are not intended as long-term habitats for fish. It’s not unusual for them ...

An angler came across this pair while on a fishing trip in Texas. One fish had another of almost the same size protruding from its mouth. The video shows the two fish — both still alive — which he ...

The so-called Vampire catfishes of the trichomycterid genus Vandellia attack the major gill arteries and don't suck out the blood of their prey, according to the results of a new paper. Two Brazilian ...

Medical researchers in Boston have created a transparent zebrafish (Danio rerio) strain that allows them to study stem or tumour cell engraftment. The new strain is named casper by Richard White and ...