How big is the world's largest ant?
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According to the myrmecologists (ant specialists), there are over 20 000 species of ants on our planet, grouped into 350 different genera. It is in the ponerine tribe that the world's largest ants are found, namely, the Paraponera and the Dinoponera.\n \nThe Dinoponera gigantea are by far the largest, measuring up to three centimetres in length.
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On average, an ant has approximately 100,000 neurons in it's central ganglia.  It's interesting that you ask this, because ant colonies are commonly used to demonstrate the possible behavior of a 'dissociated brain" colony, in which the entire colony is a single organism.  A very large colony of ants could have as many as 1 billion neurons total...still many orders of magnitude less than a human, but pretty bright for an insect!
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Because the ant has such a large surface area comparative to its mass, it's likely that at any height on Earth when atmosphere is present that an ant will survive the fall.\n\nThere are several species of ant which are able to glide, maneuvering their body as they fall.  These are mostly tree-dwelling species in places like the Amazon rainforest.  If they happen to fall from a tree, they simply glide back to the trunk of the tree and climb back up.
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Here's one that is over a foot long ...\n\nhttp://www.designtoscano.com/jump.jsp?itemID=4293&itemType=PRODUCT&path=1%2C2%2C66%2C69\n\nAlso, there's a several-foot long fire ant statue in Northport, Alabama
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The term "largest" needs clarifying as the tallest may not be the heaviest, longest etc.\n\nHowever I would suggest the Carribou (?) \n\nSurely the Grizzly lives in the mixed forests of N America and is not native to the pure pine forests of Norway etc.
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clipped from www.wisegeek.com\n\nFor sheer length you can't beat a female Giant Walking Stick (Phobaeticus serratipes). Found in Malaysia and Singapore, looking like an assemblage of twigs, it is perfectly camouflaged among the branches where it lives. The longest specimen on record was an amazing 21.8" (55.5cm). Some people even keep these huge insects as pets.\n\nThe Giant Walking Stick may be long, but it doesn't have much mass. For that you have to turn to the giant scarab beetles. Among them, entomologists have settled on 5 contenders:\n\nThe South American Longhorn Beetle (Titanus giganteus) of French Guiana makes perhaps the most impressive showing with a body length over 6.5" (16.7cms).\n\nA shorter but far thicker competitor is the Acteon Beetle (Megasoma acteon) of South America. Males can grow to 5.3" (13.5cms) long by 1.6" (4cms) thick. \n\nThe Elephant Beetle (Megasoma elephas) found in Mexico and Venezuela has a shorter body than the Aceton, but a longer snout, making its total recorded length 5.4" (13.7cms).\n\nBringing up the rear are two species of Goliathus: regius and goliatus, both measuring in at 4.3" (11cms).\n\nIn 1874 the Rev. J. G. Wood published Insects Abroad, in which he claimed to have in his possession a 9" (22.8cm) South American Longhorn Beetle (Titanus). A specimen this large has never been documented since, and no one is quite sure what method he used to measure the bug. Therefore the accepted recorded length remains at 6.5" (16.7cms), which still leads the top five contenders.\n\nAlthough the Giant Walking Stick and scarab beetles win for length and mass, for sheer weight you'll have to turn to the giant wetas (Deinacrida heteracantha) of New Zealand. A pregnant female can top the scales at over 2 ounces (71gms)! \n\nThere are well over 1 million insect species known, with an estimated 10 million still undocumented. However, the title of world's biggest insect remains a matter of what constitutes "biggest" to you: length, mass or weight!
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Q: whats the biggest ant around?\nA: an elephANT.\n\nOn a Dixie cup, my friends thought it was hillarious...
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The biggest cat in the world is the sibrian tiger - this tiger is a northern sibrian(Russan) sub-species and adult males average 10ft in length - they weight 584 lb in the wild - the largest ever was 813 lb - the Siberian tiger is the Largest Living big cat -\nstatictics 280kg male - go to http://www.bbc.co.uk/nature/wildfacts/factfiles/19.shtml for uptodate information from the bbc - as the Liger is NOT found in nature it is not regarded as the largest big cat
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The blue whale. It has been dubbed the largest animal that has ever lived on Earth; it bigger than even the biggest dinosaurs. It is on average between 80 and 100 ft. long. Females are bigger than males. The largest ever recorded when measurements were accepted world wide was 102ft. But befor there was standard world wide measurement, whaler claimed to have recorded a 108 foot blue whale, and a 110 foot blue whale; but scientist aren't sure how accurate those last two measerments are.\nThe baby is aslo the largest baby in the world.
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The world’s largest monolith is Burringurrah/Mt Augustus in Western Australia, which is more than 2.5 times the size of Uluṟu—it stands 858 metres above the surrounding plain, 1105 metres AHD and covers 47.95 km².\n\nUluṟu (Ayers Rock) is often referred to as a monolith, and for many years it was even listed in record books as the world’s largest monolith. However that description is inaccurate!
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http://www.calacademy.org/naturalhistory/ants.html
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The life cycle of the ant consists of four stages: egg, larva, pupa, and adult. Fertilized eggs produce female ants (queens, workers, or soldiers); unfertilized eggs produce male ants. \nEgg: Ant eggs are oval shaped and tiny (they are on the order of 1 mm long, but the queen's egg is many times larger). \n\nLarva: The worm-like larvae have no eyes and no legs; they eat food regurgitated by adult ants. The larvae molt (shed their skin) many times as they increase in size. \n\nPupa: After reaching a certain size, the larva spins a silk-like cocoon around itself (against a solid object, like the wall of the chamber) and pupates. During this time the body metamorphoses (changes) into its adult form. \n\nAdult: The pupa emerges as an adult. The entire life cycle usually lasts from 6 to 10 weeks. Some queens can live over 15 years, and some workers can live for up to 7 years.
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The world's largest pyramid is the Great Pyramid of Cholula, in Puebla, Mexico, with an estimated volume of 3.3 million m³ (4.3 million yd³).
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Size, Age, and Growth\nThis ray can achieve a maximum disc width of 29.5 feet (9 m), with an average width of about 22 feet (6.7m). The largest specimens of the manta weigh up to 3,000 pounds (1350 kg). Estimated life span for these giants is approximately 20 years.
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The heaviest insect is probably the goliath beetle (Goliathus goliath) of Africa, which is reputed to weigh up to 100 grams (more than a small bird)!
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Moa were giant flightless birds native to New Zealand. Ten species of varying sizes are known, with the largest species, the Giant Moa (Dinornis robustus and Dinornis novaezelandiae), reaching about 3 m (10 ft) in height and about 250 kg (550 lb) in weight. They were the dominant herbivores in the New Zealand forest ecosystem.
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Anaconda (snake), common name for large South American snakes of the boa family. Anacondas are among the largest and most powerful snakes in the world. The common anaconda is the longest snake in the western hemisphere and the heaviest snake in the world; on average, a large adult may be 6 m (20 ft) long and weigh 107 kg (235 lb). One of the longest anacondas ever recorded reached 10 m (about 33 ft) and weighed 250 kg (about 550 lb). Anacondas kill their prey by constriction or squeezing. The common anaconda inhabits the river systems of northern and Amazonian South America east of the Andes. The yellow anaconda is much smaller, usually not exceeding 3 to 4 m (10 to 13 ft), and lives in the river systems of southern South America. Female anacondas give birth to living young\nOn DAVID LETTERMAN .THEY BEAT THE RECORD IT WAS  34 FEET JUST RECIENTLY BECAUSE THIS GUY BROUGHT IN ONE HE RAISED AND HE SAID IT WAS NOT DONE GROWING\n\nScientific classification: Anacondas belong to the family Boidae. There are four species, all in the genus Eunectes. The common anaconda is classified as Eunectes murinus, and the yellow anaconda as Eunectes notaeus.