You can own a piece of fish conservation history

Up for auction is a true piece of American (and Boston) history. Written only two months after the United States signed the Treaty of Paris in 1783, this letter may be one of the earliest US governmental conservation documents in existence. Fish conservation no less. And signed by *THE* signature of all signatures, John Hancock!

The Fluorescent Maldives

With the advent of technology, fluorescent night diving is becoming a popular form of underwater photography/videography. Biofluorescence has captured the interests of many reef divers and for good reason: sealife (particularly corals) are at their most amazing when they're transforming blue and UV light into unbelievable glowing colors.

Sisters act together – Cichlid sisters swim together in order to reach the goal

Many fish travel in shoals as a form of protection. But the exact shoaling patterns – who groups with whom – differ from species to species. A team of researchers from the Konrad Lorenz Institute of Ethology at the Vetmeduni Vienna studied cichlid fishes in Lake Tanganyika in central Africa. On their dives, the researchers observed that female fish dispersed longer distances from their natal grounds than males. To minimize risks and to secure the spread of their genetic information, females often swim together in a shoal with female siblings. Males, on the other hand, prefer shoaling with non-siblings. The results were recently published in the journal Oecologia.

This is how giants do

Goliath groupers are massive fish that can grow nearly 2.5 meters in length (8 feet) and weigh almost half a ton (450kg). Last summer, scientists documented for the first time how these rare giants spawn.