Jeff Milisen: Venus girdles (Cestum veneris) coil up to help trap and engulf prey. The striking #natural #colors are caused by defraction of my strobe light on the cilia.
Jeff Milisen: Onychoteuthis sp watermark
Jeff Milisen: Scad blotting out the #sun at the #Arborek jetty in #rajaampat.
Jeff Milisen: Narcomedusae are one of the more common jellies in Hawaii's pelagic waters, but hardly anyone notices them.
Jeff Milisen: Last night's moment of #serenity: a long exposure of the #supermoon rising over #Lanikai #beach.
Jeff Milisen: Pelagic nudibranchs and their prey: on the left is Glaucus atlanticus. On the right sits Glaucus marginatus. And in the middle, their favorite food, Physalia utricalis, floats helplessly. All three were found floating in a current line offshore from Kona.
Jeff Milisen: This feisty oceanic whitetip surprised me at the offshore fish farm.
Jeff Milisen: A juvenile African #pompano jack (aka threadfin #trevally or Alectis ciliaris) swims by one evening on a #blackwater dive with @kona_honu_divers. This little jack might swell to over a meter long and almost 23 kg's! For now, it gets by using #mimicry to
Jeff Milisen: "He is the most gamesome and light hearted of all the #whales, making more gay foam and white #water generally than any other of them." I am brushing up on #melville #quotes in preparation for this year's #humpback whale season! @thecooph #instagood #fol
Jeff Milisen: The #manowar #jellyfish is neither jelly, nor a #fish. Instead, it is a unique siphonophore that floats at the #ocean surface as part of a community that lives at the air/sea interface known as neuston. Most siphonophores #sting but the Man o war causes t
Jeff Milisen: The compound #eyes of a #mantisshrimp have 4 times the number of photo receptors as a human. This enables the #shrimp to make speedy decisions regarding friends and foes and lash out accordingly. #ikelite
Jeff Milisen: We traveled #offshore this #weekend to look for these. Glaucus atlanticus is a #pelagic #nudibranch that eats #manowar #jellyfish. They absorb the #sting and reuse it to fend off predators. #macro #nature #ocean
Jeff Milisen: This is a #pelagic #larvae of a #deepsea #fish called Lamprogrammus. When it grows out of this awkward adolescence, it will settle out on a continental shelf. For the time being, it must drift around stuffing it's external #gut. #nature is weird. Observed
Jeff Milisen: Her name in the #konatigersharks database is Rachel Parker, after the tiger in the #lifeofpi. At 13 feet long, the #nose rub that this #beautiful but #massive #tigershark wanted was a bit intimidating! #predator #Hawaii #photooftheday
Jeff Milisen: Andrew goes nose to #nose with a sandbar #shark. #nofilter #sharkawarenessday
Jeff Milisen: This purple back flying #squid is dying. Squid are #cannibals. The chew marks on its mantle are from other squid that attacked it and left it unable to move. It's #chromatophores flashed, it's ink drizzled out, and the #motionless #animal sank #helpless i
Jeff Milisen: The #sharkweek legend @deronverbeck shows @staceyaloha her first oceanic whitetip. #sharks #saveourseas #endangered #pelagicsharks
Jeff Milisen: #hammerhead #shark cruises by a cleaning station at #wolf #island, #galapagos #galapagosislands. #cites #underwaterphotography #underwater #unesco #nature #predator
Jeff Milisen: Blue spotted #urchin (Astropyge radiata) in #Kona #Hawaii. #ikeliteusa #canonusa #invertebrate #marinebiology #honokohau #echinodermata #echinoderm
Jeff Milisen: To #celebrate #worldoceansday, I present a #protected #Mantaray photographed in #Kona #Hawaii. #cites #manta #underwaterphotography #nature #nightdive #megafauna #plankton
Jeff Milisen: Meet Brachioteuthis, a #deepwater #pelagic #mesopelagic #squid #cephalopod with a go-go gadget neck. The purpose for this extendable neck in juveniles is unknown. #deepsea #scuba #science #biology #marinebiology #ocean #oceanminded #nature
Jeff Milisen: While this #oceanic #giant #manta ray gets a facial cleansing from a king angelfish, a #kampachi takes the opportunity to stage an #ambush on the smaller angelfish. #ikeliteusa #ikelite #canon #tokina #nature #scuba #galapagos #galapagosislands #megafaun
Jeff Milisen: Visibility in the #galapagosislands is low, the temperature is brisk, and the currents are racing. This translates into incredible #productivity and #fish schools so thick, they dim the sunlight. These #trevally greeted us within a minute of #diving in.
Jeff Milisen: Sarah shares an #algae breakfast with one of the #galapagos most famous residents: a #marine #iguana. #endemic #galapagosislands #vegetarian #ocean #oceanminded #nature #naturelovers #underwaterphotography #underwater #scuba
Jeff Milisen: My dive buddy and the strange human intruder. #tigershark #shark #Kona #nature #underwaterphotography
Jeff Milisen: Kosrae over under
Jeff Milisen: Pilot #whale pod offshore from #Kona #Hawaii. #wildhawaii #underwaterphotography #freedive
Jeff Milisen: The theme this week seems to be #frogfish! Here is a commersons frogfish dodging a #boat at the harbor. #ocean #nature #Kona #Hawaii
Jeff Milisen: This #rare hairy frogfish (Antennarius striatus) recently set up shop in #Kona, #Hawaii.
Jeff Milisen: Night octopus paralarva (Callistoctopus ornatus) on a blackwater dive. #photooftheday #nature #ocean #canon #science