engraver: Rene Cottet
Argyropelecus gigas, or giant hatchetfish can be found in tropical waters of all the oceans and is native to around 90 countries, including the Republic of Congo. Giant Hatchetfish aren't really all that giant - they usually reach only 4-6 inches, but that is much bigger than many of the other 40 species of hatchetfish. They have big eyes that are extremely sensitive to light and shadow in depths of 400-4,000 feet. Their eyes are also focused upwards which helps them find food. Another interesting feature is their ability to fly by fluttering their pectoral fins.
for the letter F - fish, flying, fins