A general rule among most hybrids is that the two parent species need to be closely related to produce progeny. We see this maxim pop up again and again among reef fishes. This is why we can get a Bluespicuous Angelfish or a Lamarckispilos Angelfish, but not, for instance, a Lemonpeel X Flame [...]
There’s been plenty of press recently over the new Finding Dory movie and its inevitable effect on the aquarium trade. Much has been written in the media expressing concern that there might be a mass over-collection of Dories (the Pacific Blue Tang Paracanthurus hepatus) to satiate the demand of [...]