Here we list ten animals that would have the longest lifespans living under ideal circumstances.
1. Longfin Eel
Native to New Zealand and Australia, these eels often live to 60 years old with the oldest living Longfin Eel recorded as being 106 years old! These fish grow very slowly which is why they can grow so old.
2. Red Sea Urchin
Red sea urchins are believed to be almost immortal. They are found in the shallow water of the Pacific Ocean along the West Coast of North America. These small, spiny creatures have been known to live for more than 200 years.
3. Ocean Quahog
Some collected specimens have been calculated to be more than 400 years old. These animals show exceptional longevity with a highest reported age, for ‘Ming’ the clam, of 507 years. The clam so named as it would have been alive during the Ming Chinese Dynasty
4. Galapagos Giant Tortoise
The largest living species of tortoise that can survive well past a hundred, with the oldest recorded at 152. The most famous Galapagos Tortoise was ‘Lonesome George’, a sub species who lived on the Islands, he was 100 years old and still classed as a young adult! He had become an ambassador of sorts for the islands off the coast of Ecuador whose unique flora and fauna helped inspire Charles Darwin’s theories on evolution
5. African Elephant
The largest surviving land-animals have an average lifespan of 70 years and a recent Zimbabwean study has found that female African elephants can potentially remain fertile until their ᴅᴇᴀᴛʜ!
6. Koi Fish
Koi usually live for 25-30 years but there are reports of koi that have reached ages of over 200 years old! One famous koi in Japan, named “Hanako”, ᴅɪᴇd in 1977 and a study of the growth rings of one of her scales reported that she was 226! This made her older than the United States of America!
7. Immortal Jellyfish
A very unique jellyfish which can revert back to its premature state when exposed to sᴛʀᴇss or ɪɴᴊᴜʀy. Whilst this means it is biologically immortal, in practice they don’t live forever and get ɪɴᴊᴜʀed and eaten just like other animals.
8. Greenland Shark
These sharks can reach ages of 200 years old although one individual was found that was 400 years old – making it the oldest vertebrate in the world. They live so long because they grow very slowly. They grow about 1cm a year and reach maturity at about 100 years old, now that’s a long childhood!
Macaws can live up to 60-80 years, while their breeding age ranges from 30 to 35 years. Unfortunately the majority of macaws are now enᴅᴀɴɢᴇʀed in the wild and a few are already ᴇxᴛɪɴᴄᴛ due to habitat ᴅᴇɢʀᴀᴅᴀᴛɪᴏɴ and the ɪʟʟᴇɢᴀʟ pet trade.
10. Bowhead Whale
Bowhead whales have an average lifespan of 200 years – one whale was even found with fragments of a harpoon dating back to the 1800’s in its blubber! They spend their lives in the Arctic and sub-Arctic and are the fifth-largest marine mammal!