“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.
The moral is…never underestimate the power of nematocysts.
A large and intense Arctic temperature swing—more than 40 degrees above normal—has caught the attention of scientists.
Macrophotography Shows Phytoplankton Abundance Is Very High In Cool, Clear (?) Water; Is It The Same Over Coral Reefs?
Odd, but large, and very valuable pearls may be found in some animals that may make it into reef aquaria.