How Long Can a Dog Live With Fluid Around the Heart

Animals living under natural conditions rarely arroyo their maximum possible age considering of very high death rates due to baby mortality, diseases, predators, bad weather, habitat destruction, or competition for nutrient and shelter.

Here nosotros list ten animals that would take the longest lifespans living under ideal circumstances.

10. Macaw

Recognisable past their brightly covered feathers, macaws are members of the parrot family. They have a long lifespan and, in the right environment, will live to be 60 to eighty years old. There are at domicile in the rainforests and feed on a mix of nuts and seeds. Unfortunately, though, the majority of these cute birds are endangered in the wild and a few are already extinct due to habitat degradation and the illegal pet trade.

Picture Credit: arpingstone (Wiki Commons User)
9. African Elephant

African elephants are the largest living land animals and, with an average lifespan of seventy years, one of the oldest. Experts are able to tell the age using several characteristics including their size and number of teeth. It'south a procedure that requires observational skills and a lot of practise!

Females reach breeding age around x-12 years old and, unlike us, they may remain fertile for the rest of their lives. They may give birth to around seven babies in total. Being a mummy elephant is no easy task though. Their pregnancy lasts 22 months, which is near 3 times every bit long as a human being pregnancy! Read more about elephants.

Image by Nel Botha from Pixabay
8. Longfin Eel

Longfin eels typically alive up to threescore years old though the longest living on record reached 106! They are native to New Zealand and Australia and spend most of their life hiding in freshwater streams earlier migrating to the Pacific Bounding main to breed. They only practise this once in the lifetime and die afterward spawning. They are very irksome-growing animals, growing simply 1-2cm a year, only females somewhen grow to an impressive 73–156 cm in length.

Image past Carpenter0 (Wiki Commons User)
7. Galapagos Giant Tortoise

Information technology's not simply the Galapagos Giant Tortoise size that's worth noting; it's too their age. They can live to be well over 100, with the oldest known to be 152! The oldest is non the near famous, though. Lonesome George was the last remaining Pinta Island Tortoise on the islands and, for a while, the earth'southward rarest creature. He died in 2012 at around 100 years of historic period. Similar many of the animals on our list, behemothic tortoises accept a wearisome footstep of life, munching on grass and other vegetation, basking in the sunday and resting for up to 16 hours a mean solar day.

Read More almost Galapagos giant tortoises.

Prototype: Lieutenant Elizabeth Crapo, NOAA Corps., Public domain, via Wikimedia Eatables
6. Cerise Body of water Urchin

Red sea urchins are believed to be near immortal and are known to live for over 200 years with no signs of ageing. They are far more likely to be eaten by a predator than die of an historic period-related status, and a 100-year-onetime is just as healthy and able to reproduce as a young individual. Finding the age of these spiny echinoderms is possible by measuring the levels of carbon-14, a process known as radiocarbon dating.

Image by Oregon State Academy from Flickr.
v. Koi Fish

The average lifespan for Japanese Koi is around xl years though they tin live a lot longer if living in the right atmospheric condition. One particular koi, named "Hanako", was the remarkable age of 226 when she died in 1977. Scientists were able to gauge her age by counting growth rings in her scales.

Image by Pexels from Pixabay.
4. Bowhead Whale

Bowhead whales can live for over 200 years, which is longer than any other mammal. It's not always easy to tell their age, though, equally they spend their lives in the Arctic and sub-Chill and can outlive the researchers that study them. One way to estimate historic period is to base of operations it on fragments of harpoons left in the blubber of captured animals – one private had harpoon fragments dating back to the 1800s! Another way is to use DNA to gauge lifespan, with scientists suggesting bowhead whales can alive to the k erstwhile historic period of 268!

Read More than nearly bowhead whales.

Picture Credit: Bering Country Bridge national Preserve (Wiki Commons)
3. Greenland Shark

Greenland sharks alive for between 300 and 500 years and are the longest-living vertebrate. They have life very slowly, moving at an average of 0.76 mph. They grow near a cm every year, and females may not reach sexual maturity until they are 100 to 150 years former – that'south ane long babyhood! Despite their huge size and long lifespan though, these sharks have been a mystery to scientists for years. It was only recently that they discovered a new method of estimating age that involves radiocarbon dating the lens of the eye. New tissues are added to the lens every year and it is possible to tell the historic period past how much carbon isotope is present in the tissues.

Photo credit: NOAA Okeanos Explorer Program
2. Body of water Quahog

Ocean Quahogs are an edible clam with an impressive lifespan. Many will live to run across their 400th birthday and the oldest one on tape was 507 years old when it was caught off the declension of Iceland in 2006. Scientists were able to determine the age by counting growth rings on the beat, similar to how we age trees. They can also find out other information also. How the shells course over time tells scientists how the oceans take changed throughout the years – they are a living creature and a picture of life in a changing world!

Photo credit: NOAA Photo Library
one. Immortal Jellyfish

Can y'all imagine being immortal? Reaching erstwhile age and so instead of dying, going dorsum and starting again as a infant? To the states, this is the stuff of dreams. For the immortal jellyfish, it is real life. These amazing animals start their life as larvae, known as planula, swirling around in the bounding main. They then settle on the seafloor and become static polyps before transforming into swimming medusa. So far, so normal. Merely, if at any stage immortal jellyfish experience injury or stress from changes in their environment, they tin can go backwards to the polyp phase and offset once more. And they can do this over and over if they get the take chances. Many won't though every bit they become dinner for other animals.

Read More most jellyfish in our Brute A-Z

Image: Bachware, CC By-SA four.0 , via Wikimedia Commons