Showing 2 posts tagged caves
Underwater footage shot whilst scuba diving in the Fiji islands and Tonga. Featuring colorful coral reefs, huge schools of tropical fish, sharks, humpback whales, underwater caves, scuba divers and much more marine life from the south Pacific.
Bonus: click the CC button for closed captions on this video from Bubble Vision, or enjoy the convenient list that they put together in the video description, (click Show More below the vid) for labeled names of the dive sites and marine life in each shot.
Arachnocampa is a genus of four fungus gnat species which are, in their larval stage, glow worms. They are found mostly in New Zealand and Australia in caves and grottos, or sheltered places in forests.
The larva spins a nest out of silk on the ceiling of the cave and then hangs down as many as 70 threads of silk (called snares) from around the nest, each up to 30 or 40 cm long and holding droplets of mucus…
The larva glows to attract prey into its threads, perhaps luring them into believing they are outdoors, for the roof of a cave covered with larva can look remarkably like a starry sky at night.