The nudibranch Fjordia chriskaugei, Gulen Dive Resort, Norway

Nudibranchs named after Gulen Dive Resort and friends

Over the years, new species have been found and existing species have been moved to other genera while other species are new. Thus, our colleague Christian Skauge writes that the Flabellina family has now gone "extinct" in Norway because the species therein have now been reclassified and put into other genera.

Many species of whales and dolphins have supersensitive hearing because they use sound to navigate

Whales and dolphins naturally muffle loud sounds

Instead of wearing earplugs at a rock concert, imagine you could simply tune a dial inside your ears to lower the volume and protect your hearing. In a new report published in Integrative Zoology, researchers have discovered four whale species and dolphins can do just that. This could potentially shield the animals from navy sonar and oil drilling, linked to at least 500 marine mammal deaths since 1963.