A new publication confirms the extirpation and possible extinction of the benthic ecosystem apex predator, the Sunflower Sea Star, Pycnopodia helianthoides, due the combined effects of abnormally warm sea water temperatures coupled with the effects of sea star wasting disease.
A recently written article analyzes the significant success of the Endangered Species Act by noting the recovery of numerous populations of marine mammals and sea turtles.
What is that strange invader in my reef aquarium? Meet the Stauromedusans.
Initially, the worm was thought to obtain a permanent shelter from predation at a minor expense to the coral. However, experimental work has shown that the cost to the coral is minimal and that the worms can provide two quite significant benefits to the coral: First, the top of the calcareous operculum is secreted in the form of multiple sharp rays.
“Olde mossie-backed divers” such as myself, were usually told the urine tale in our scuba classes in the late 1960s or early 1970s; but once we started to think about it, particularly as scientists (junior grade), it made no sense, whatsoever.