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For Stylocordyla borealis – the Antarctic lollypop sponge – we calculated a maximum age of 150 years. The slower growing Cinachyra antarctica may reach 1550 years of age. Average sized rossellid sponges which are 30 - 40 centimetres high are at least 300 years old. And the gigantic 2 metres high specimen documented for the Ross Sea is more than ten-thousand years old and hence the oldest creature known on this planet - a couple of times the age of Methuselah, the biblical patriarch who is said to have lived 969 years. It seems, that within an animal group preconditions for maximized body size are low and stable temperatures together with maximized oxygen availability and minimized metabolic rates.
MAMMALS YEARS
Elephant 69
Horse 50
Hippopotamus 49
Chimpanzee 40
Grizzly Bear 32
Bison 30
Lion 30
Tiger 25
Elk 22
Mountain Lion 20
Beaver 19
Wolf 16
Squirrel 16
Chipmunk 12
Cottontail 10
House Mouse 4
BIRDS YEARS
Turkey Buzzard 118
Swan 102
Parrot 80
Great Horned Owl 68
Eagle 55
English Sparrow 23
Canary 22
Humming Bird 8
FISH YEARS
Catfish 60
Eel 55
Carp 47
Mosquitofish 2
REPTILES YEARS
Giant Tortoise 152
Box Turtle 123
Alligator 68
Snapping Turtle 57
Cobra 28
Cottonmouth 21
AMPHIBIANS YEARS
Giant Salamander 55
Toad 36
Bullfrog 30
Mud Puppy 23
Green Frog 10
Newt 7
INSECTS YEARS
Cicada 17
Ant (queen) 15
The oldest tortoise ever recorded, indeed the oldest individual animal ever recorded, was Tui Malila, who was presented to the Tongan royal family by the British explorer Captain Cook shortly after its birth in 1777. Tui Malila remained in the care of the Tongan royal family until its death by natural causes on May 19, 1965. This means that upon its death, Tui Malila was 188 years old, a figure that gives it the title of oldest Cheloniinae (tortoise or turtle) ever recorded.
The Aspen tree (Populus tremuloides) forms large stands of genetically identical trees (technically, stems) connected by a single underground root system. These trees form through root sprouts coming off an original parent tree, though the root system may not remain a single unit in all specimens. The largest known fully-connected Aspen is a grove in Utah nicknamed Pando, and some experts call it the largest organism in the world, by mass or volume. It covers 0.43 km² (106 acres) and is estimated to weigh 6,600 short tons (6,000 t).
A giant fungus of the species Armillaria ostoyae (honey mushrooms) in the Malheur National Forest in Oregon was found to span 8.9 km² (2,200 acres)[4], which would make it the largest organism by area. Whether or not this is an actual individual organism, however, is disputed: some tests have indicated that they have the same genetic makeup,[5] but unless its mycelium is fully connected, it is a clonal colony of numerous smaller individuals. Another clonal colony that rivals the Armillaria and the Populus colonies in size is a strand of the giant marine plant, Posidonia oceanica, discovered in the Mediterranean Sea near the Balearic Islands. It covers a band roughly 8 km (4.3 miles) in length.
