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Injured farmer uses drone "cowscan" technology to check newborn calves in pasture
Bossy cow pushes herd mate off to enjoy a good face scratch
Drifting on the current with gigantic Pacific green sea turtles
Canada's most beautiful waterfalls captured by drone
Tourist uses ingenuity to boil eggs in natural hot spring in Canada
This treacherous pass was "The Gates of Hell" according to early explores
Orca Inspects Tourists In A Tiny Boat In Galapagos Islands
High speed drone provides unique look at life on a country farm
Protective rhinoceros mother keeps a close eye on her precious calf
Kenyan woman shows Canadian friend how she gets water in her village
Mother cow gives birth while her friends line up for support
Scuba diver recovers drone after mysterious plunge into the ocean in Fiji
Devoted osprey brings his mate fish as she prepares to lay her eggs
Curious gopher sniffs the camera left at her den entrance
Ground squirrel calls for her babies in the most adorable way
Cheeky vulture wisely gives gorging lionesses a wide berth
Drone captures breath taking beauty from above at the harborfront
Baby elephant drinks water at the river in the most adorable way
Young Bull Elephant Gives Himself A Dust Bath In Kenya
Boat races to beat storm to the safety of the harbour at sunset
Veteran cop interviews Nigerian scammer on video to explain his scam to the world
Cuddly Baby Goat Adorably Captures Woman's Heart
Splendid sunrise & sunset captured by drone shows beautiful color
Drone footage of Kingston reveals surprising beauty all around the harbor front
Goat schmurgle is the most fun way ever to spend time with the "kids"
Flight around Canada's highest water fountain reveals dramatic rainbows
Baby sea lions adorably call for mom to come back with their milk
Sea lion hunting in swimming area catches a fish in Galapagos Islands
Nigerian scammer talks honestly with ex cop on video about his scam
Scuba diver finds herself surrounded by giant manta rays in the Maldives
Scuba diver finds herself in the path of incoming giant manta rays
Mantis shrimp is a deceptively capable predator
The world is stunning as seen from a bird's eye perspective
Squid demonstrates ink squirting capability in Indonesia
Baby shark rolls over in the sand for a back scratch
Vividly colored giant blue clam beautifies the reef in Indonesia
Vividly colored sea anemone is a beautiful sight in Indonesia
Stargazer fish in Indonesia is a small "monster" of the deep
Zoom ability of hobby drones is shocking and disturbing
Sunset is stunning when see from above the earth
Solar powered nudibranchs feed in highly unusual way
Scuba diver finds herself in a pack of intimidating bull sharks
Wind turbines at sunset reveal the majestic beauty of wind farms
Beautiful mist enshrouds farmland at sunrise, captured from the air
Beautiful hawksbill sea turtles circle each other on the coral reef
Wild chickens find the most ironic place to look for food
Gray tree frog calls warning to rival frog outside of his cave
Cheeky seagull steals a fish scrap from much larger pelicans
Breath taking colours of autumn leaves as seen on the wings of a bird
Gigantic whale shark cruises through scuba divers like a submarine
Sleepy Pacific green sea turtle enjoys a good belly scratch in the coral
World's laziest sea lion finds clever way to reach the water's edge
Gigantic whale shark comes for back scratch on small scuba boat
Chasing your dream can lead you where you never imagined
Fan-bellied leatherjacket is a bizarre looking animal
Giraffe brothers playfighting on the African plain shows the beauty of animals in the wild
Giant manta rays give scuba divers beautiful close up experience
Majestic horses run free in the meadow on a sunny day
Breathtaking beauty of British Columbia captured from above
Curious manta rays circle around delighted scuba divers
Gigantic fishing spider is one of nature's best scuba divers
Monstrous whale shark dwarfs scuba divers in the Galapagos Islands
This stunning lighthouse is the easternmost point of North America
Ostrich gives epic performance but fails to get the girl
Daisy the bunny munches noisily on a treat and it's too cute!
Lion brothers meet affectionately on the African Plain
Flamingo feeds in an unusual manner to extract shrimp from mud
Mighty leopard stops to have a big drink at watering hole
Young hawksbill sea turtle follows scuba diver over the coral reef
African farmer and her son upload videos to pay for his education
Sanctuary bull with intimidating horns asks guest for a head scratch
This steel safe killed one of America's most famous men
The beauty of Canada from one coast to the other
Heart warming close look at a calf's entry into the world
Child giggles with delight as she sails over a waterfall in Ecuador
Anemone fish can live where few other fish can
Surprising footage captured by child on African bus ride
Endangered hawksbill turtle casually eats as scuba divers look on
Olive baboons show their ferocious teeth as they playfight
Venomous emperor sea urchin is one of the most ornate sea creatures
Smooth green snake is one of the most beautiful in North America
Tiny finches feast on leftover airport pizza in the Galapagos Islands
One of the the ocean's most bizarre animals; the beaded sea cucumber
Sanctuary goats go crazy for green bananas from guests
Pelican shows off his impressive fishing skills and huge beak
Gigantic humpback whale rises beside mesmerized swimmer in Tonga
Badlands salt flats look like an alien landscape when seen from the air
Pacific green turtle calmly eats as scuba diver watches enthralled
Orioles are one of the most vividly colored birds in North America
Flash flood washes out road in Kenya, Africa
Chickens happily enjoy a feast on farm in Kenya, Africa
Dramatic sunset footage of ominous lightning storm approaching harbor
Old world pomegranate juice vendor has been serving fresh juice here for 50 years
Close up look at the most high powered eyes on the planet
Mighty leopard caches deer in a tree to keep it safe for later
The beautiful and fascinating strawberry nudibranch
Venomous lion fish continuously tries to eat photographers subjects
Huge moray eel comes at scuba diver for a close inspection
Happy Great Dane Puppy Wags Her Tail While She Sleeps
Fire dancer in Roatan gives mesmerizing beach performance
Massive hippos bask in the afternoon sun beside the river
Grouper in Roatan gets a teeth cleaning by his little friend
The beauty and mystery of Roatan revealed
Captivating Video Captures Bluebird's Delicate Landing at Bird Box Nest
Beautiful flamingos squabble in the sunshine
Drone captures total eclipse over the shore from bird's eye view (Sped up 7.5x)
Midnight snorkelers capture incredible salamander migration
Witness the mystical underwater world in the Maldives
Ingenious floating pina colada bar in Roatan
Decorator crabs are more complex than we realized
Vividly colored giant blue clam beautifies the reef in Indonesia
There are many species of giant clams, with some specimens growing well over 1.5m (4.5 feet) across. They can weigh over 200kg (440lbs). Their shells and mantles can range from green or brown, to iridescent blues and purples. They are magnificent in their appearance but their ability to thrive and find nutrients is equally impressive.
The giant clams are the largest of the bivalve mollusks on the planet. They are filter feeders, straining the ocean water for zooplankton, yet they get most of their energy through a symbiotic relationship with algae. The clams cultivate algae in a special circulatory system, providing it with energy derived from sunlight, as well as oxygen from the photosynthesis. This symbiotic relationship is a relatively rare phenomenon in the animal kingdom.
Clams are hermaphrodites, allowing them to reproduce with any other clams, giving both individuals the opportunity for reproduction. Clams cannot self fertilize. They release sperm and eggs into the surrounding water, but amazingly this process is synchronized with other clams in the area through the release of a transmitter substance, called "spawning induced substance". Many clams will synchronize their contractions with other nearby clams to maximize fertilization. The contractions occur every 2-3 minutes over a period of a few hours. A single clam may release as many as 500 million eggs in one episode.
Clams have photoreceptors in their mantles that allow them to detect changes in light above. This signals them that a predator is near and they close to avoid their flesh being eaten. They have no true eyes and they are unlikely to respond to threats that do not involve sudden changes in water currents or light. A scuba diver passing over a clam will cause it to close.
These clams have been the victims of misunderstanding and fear, being dubbed "killer clams" or "man-eating clams". Legends tell of people being trapped by these clams and drowning. The clams are not capable of aggression and they close simply for defense. The shells close so slowly that it would take severe negligence to become trapped by one. The largest of the clams are not capable of fully closing their shells. It is highly unlikely that any clam has ever caused the death of a human.
Extensive harvest for aquarium trade and food have decreased the clam populations in the past few decades. They are considered a delicacy in Japan, France, and some Pacific islands.
These clams are a delightful sight for scuba divers and underwater explorers. This beauty was filmed near Komodo Island in Indonesia.
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