Flush-Free Fertilizer
Fast-flying fungal spores
Silk’s superpowers
Tree Frogs
Navigating by the Light of the Moon
Cacophony Acoustics
Elephant Mimics
Listening to Birdsong
A Light Delay
Sugar-pill medicine
Tropical Birds
Chemistry and Materials
A Light Delay
Smelly Traps for Lampreys
A Diamond Polish for Ancient Tools
It's a Small E-mail World After All
Seen on the Science Fair Scene
Getting in Touch with Touch
Dinosaurs and Fossils
Fossil Fly from Antarctica
Digging for Ancient DNA
Have shell, will travel
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
The Rise of Yellowstone
Drilling Deep for Fuel
In Antarctica watch the heat (and your step)
A Change in Climate
Swimming with Sharks and Stingrays
A Change in Leaf Color
Finding the Past
A Long Haul
Words of the Distant Past
A Long Trek to Asia
Manta Rays
Nurse Sharks
Food and Nutrition
Recipe for Health
In Search of the Perfect French Fry
Building a Food Pyramid
GSAT English Rules
Order of Adjectives
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
Preparing for the GSAT Exam
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
2014 GSAT Results for Jamaican Kids
GSAT stars reap scholarship glory
GSAT Mathematics
Math and our number sense:
How a Venus Flytrap Snaps Shut
Setting a Prime Number Record
Human Body
Teen Brains, Under Construction
Music in the Brain
A Better Flu Shot
Giant Clam
Polar Bear
African Wild Dog
How children learn
The Surprising Meaning and Benefits of Nursery Rhymes
Children and Media
Electric Backpack
Dreams of Floating in Space
The Pressure of Scuba Diving
Hungry bug seeks hot meal
Farms sprout in cities
Pumping Up Poison Ivy
Space and Astronomy
Pluto's New Moons
A Family in Space
Wrong-way planets do gymnastics
Technology and Engineering
Space Umbrellas to Shield Earth
Musclebots Take Some Steps
Dancing with Robots
The Parts of Speech
Problems with Prepositions
What is a Verb?
Robots on the Road, Again
Flying the Hyper Skies
Where rivers run uphill
The Best Defense Is a Good Snow Fence
Weekend Weather Really Is Different
Earth's Poles in Peril
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Giant Clam

The giant clam (Tridacna gigas) or traditionally, pa’ua, is the largest living bivalve mollusc. One of a number of large clam species native to the shallow coral reefs of the South Pacific and Indian oceans, they can weigh more than 180 kilograms (400 pounds) and measure as much as 1.5 metres (5 feet) across. Tissue habitat: Stationary in adulthood, the creature's mantle tissues act as a habitat for the symbiotic single-celled dinoflagellate algae (xooxanthellae) from which it gets its nutrition. By day, the clam spreads out its mantle tissue so that the algae receive the sunlight they need to photosynthesize. Misunderstood giant: As is often the case with uncharacteristically large species, the giant clam has been historically misunderstood. Man-eating clam? Known in times past as the killer clam or man-eating clam, reputable scientific and technical manuals once claimed that the great mollusc had caused deaths; oneself from its grasp by severing the adductor muscles used to close its shell. Strong grip is defensive, not offensive: Today, it is generally acknowledged that the giant clam is neither aggressive nor particularly dangerous; while it is certainly capable of holding one fast in its grip, the shell's closing action is actually a defensive response, and far too slow to pose any reasonable threat. No account of a human becoming trapped in this manner has ever been substantiated.

Giant Clam
Giant Clam

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