Agriculture
Hungry bug seeks hot meal
Flush-Free Fertilizer
Watching out for vultures
Amphibians
Bullfrogs
Toads
Salamanders
Animals
Moss Echoes of Hunting
Copybees
Bee Disease
Behavior
Between a rock and a wet place
Brainy bees know two from three
The Disappearing Newspaper
Birds
Geese
Songbirds
Parrots
Chemistry and Materials
A New Basketball Gets Slick
Butterfly Wings and Waterproof Coats
Watching out for vultures
Computers
New twists for phantom limbs
The Earth-bound asteroid scientists saw coming
Troubles with Hubble
Dinosaurs and Fossils
Tiny Pterodactyl
Dino Takeout for Mammals
The Paleontologist and the Three Dinosaurs
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Earth
A Volcano's Deadly Ash
Bugs with Gas
Detecting an Eerie Sea Glow
Environment
When Fungi and Algae Marry
Bald Eagles Forever
The Best Defense Is a Good Snow Fence
Finding the Past
Sahara Cemetery
Decoding a Beverage Jar
Words of the Distant Past
Fish
Whale Sharks
Dogfish
Cleaning Up Fish Farms
Food and Nutrition
Healing Honey
The Essence of Celery
Strong Bones for Life
GSAT English Rules
Problems with Prepositions
Order of Adjectives
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
GSAT Exam Preparation
GSAT Scholarship
GSAT Exams Jamaica Scholarships
2014 GSAT Results for Jamaican Kids
GSAT Exam Preparation
Results of GSAT are in schools this week
GSAT Mathematics
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Secrets of an Ancient Computer
A Sweet Advance in Candy Packing
Human Body
Germ Zapper
Opening a Channel for Tasting Salt
Remembering Facts and Feelings
Invertebrates
Arachnids
Leeches
Tapeworms
Mammals
Guinea Pigs
Yorkshire Terriers
Chimpanzees
Parents
The Surprising Meaning and Benefits of Nursery Rhymes
What Not to Say to Emerging Readers
How children learn
Physics
Project Music
One ring around them all
Dreams of Floating in Space
Plants
Sweet, Sticky Science
Fast-flying fungal spores
Getting the dirt on carbon
Reptiles
Chameleons
Crocodiles
Sea Turtles
Space and Astronomy
A Smashing Display
Planet Hunters Nab Three More
A Family in Space
Technology and Engineering
A Micro-Dose of Your Own Medicine
Weaving with Light
Machine Copy
The Parts of Speech
Pronouns
Countable and Uncountable Nouns
What is a Verb?
Transportation
Reach for the Sky
Middle school science adventures
Seen on the Science Fair Scene
Weather
Catching Some Rays
Earth's Poles in Peril
Polar Ice Feels the Heat
Add your Article

Giant Squid

Giant squid, once believed to be mythical creatures, are squid of the Architeuthidae family, represented by as many as eight species of the genus Architeuthis. Real giants: They are deep-ocean dwelling squid that can grow to a tremendous size: recent estimates put the maximum size at 10 m (34 ft) for males and 13 m (44 ft) for females from caudal fin to the tip of the two long tentacles (second only to the Colossal Squid at an estimated 14 m, one of the largest living organisms). The mantle length, though, is only about 2 m (7 ft) in length (more for females, less for males), and the length of the squid excluding its tentacles is about 5 m (16 ft). There were reported claims of specimens of up to 20 m (66 ft), but none had been scientifically documented. Light giants: Despite their great length, giant squid are not particularly heavy when compared to their chief predator, the Sperm Whale, because the majority of their length is taken up by their eight arms and two tentacles. The weights of recovered specimens have been measured in hundreds, rather than thousands, of kilograms. Post-larval juveniles have been discovered in surface waters off New Zealand, and there are plans to capture more such juveniles and maintain them in an aquarium in an attempt to learn more about the creature's biology and habits. Second largest eyes: Giant squid possess the second largest eyes of any living creature, over 1 foot (30 cm) in diameter, and their arms are equipped with hundreds of suction cups in total; each is mounted on an individual "stalk" and equipped around its circumference with a ring of sharp teeth to aid the creature in capturing its prey by firmly attaching itself to it both by suction and perforation. The size of these suction cups can vary from 2 to 5 cm in diameter (one to two inches), and it is not uncommon to find their circular scars on the head area of sperm whales that have fed or attempted to feed upon giant squid. The only other known predator of the adult giant squid is the Pacific sleeper shark, found off Antarctica, but it is not yet known whether these sharks actively hunt the squid, or are simply scavengers of squid carcasses. Because sperm whales are skilled at locating giant squid, scientists have attempted to conduct in-depth observations of sperm whales in order to study squid. Buoyant and untasty: One of the more unusual aspects of giant squid (as well as some other species of large squid) is their reliance upon the low density of ammonia in relation to seawater to maintain neutral buoyancy in their natural environment, as they lack the gas-filled swim bladder that fish use for this function; instead, they use ammonia (in the form of ammonium chloride) in the fluid of their flesh throughout their bodies, making it taste not unlike salmiakki. This makes the giant squid unattractive for general human consumption, although sperm whales seem to be attracted by (or are at least tolerant of) its taste. Growth rings: Like all cephalopods they use special organs called statocysts to sense their orientation and motion in the water. The age of giant squids can be estimated by "growth rings" in the statocyst's "statolyth" much like counting tree rings. Much of what is known about these animals come from estimates based on these, and from undigested beaks found in sperm whale stomachs. Mysterious mating: The reproductive cycle of the giant squid is still a great mystery, but what has been learned so far is both bizarre and fascinating; male giant squid are equipped with a prehensile spermatophore-depositing tube, or penis, of over 3 feet (90 cm) in length, which extends from inside the animal's mantle and apparently is used to inject sperm-containing packets into the female squid's arms how exactly the sperm then is transferred to the egg mass is a matter of much debate, but the recent recovery in Tasmania of a female specimen having a small subsidiary tendril attached to the base of each of its eight arms could be a vital clue in the solution of this enigma. The giant squid lacks the hectocotylus used for reproduction in many other cephalopods.

Giant Squid
Giant Squid








Designed and Powered by HBJamaica.com™