Octopus fight. Part 25 of my DVD, "Reef Life of the Andaman", available at http://www.bubblevision.com/marine-life-DVD.htm

In this video we encounter a day octopus, Octopus cyanea, attacking another that he unearths from the sea bed at Western Rocky Island in the Mergui Archipelago in Burma (Myanmar). It's hard to be sure whether the ensuing fight represents a territorial dispute between the two octopuses, or the aggressive mating behaviour of a determined male in pursuit of a female. If you have an opinion either way, please leave a comment.

At Richelieu Rock, north of the Similan Islands in Thailand, we see an adult domino damsel, Dascyllus trimaculatus, biting a day octopus. At first it might appear that the damselfish is feeding on the flesh of the octopus, but it is far more likely that the damsel is aggressively defending its nest.

Besides "day octopus", Octopus cyanea is also known commonly known as the "big blue octopus", "Cyane's octopus", and "common reef octopus".

After the scuba divers surface, we witness a small pod of rough-toothed dolphins, Steno bredanensis, cruising in the dive boat's bow wave in Phang Nga Bay.

The full narration is available as English, German or Spanish subtitles by turning on the closed captions (CC). There are also closed captions available showing scientific and common names of the marine life in English, German or Dutch, along with dive site names.

"Reef Life of the Andaman" is being serialised weekly on YouTube. Please subscribe to my channel to receive notifications of new episodes as I release them. The series features descriptions of 213 different marine species including more than 100 tropical fish, along with sharks, rays, moray eels, crabs, lobsters, shrimps, sea slugs, cuttlefish, squid, octopus, turtles, sea snakes, starfish, sea cucumbers, corals, worms etc..

I have more scuba diving videos and underwater footage on my website at:
http://www.bubblevision.com