The world's longest living animal is at least 176 years old, at the Australia Zoo in Queensland, Australia. This is a giant Galapagos Tortoise that was brought to Australia by Darwin in 1836, and still lives in this zoo.
there is actually a type of jellyfish who is immortal unless something kills it or something bad happens to it but if it lives peacefully, it doesn't die on its own
Ants
giraffe
the longest living gerbil lived up to 8 years.
The longest animal in the world is the bootlace worm, it can be found along the coast of Britain. See related link for more detail..
The longest time difference in the world is technically on either side of the International Date Line. They are a full day apart from one another, though there are very few people living in those areas.
Seabirds
148
150 years
Simon Stewart
The longest animal in the world would be the bootlace worm (Lineus longissimus). A specimen was recorded at 180 feet long. The longest vertebrate in the world is the Blue Whale (longest recorded at 108ft).
The world record for the longest living starfish is around 35 years.
The longest-living pit bull in the world is thought to be Uncle Chichi, who lived to 22 years old. Uncle Chichi was known for his longevity and good health throughout his life.
The Sperm Whale (Physeter Macrocephalus) (Cachalot) is the animal with the longest skull in the world (both in general and aquatically). The African Bush Elephant (Loxodonta Africana) is the longest-skulled terrestrial animal in the world. The extinct aquatic animal with the longest skull would probably be either a Mosasaurus Hoffmannii or a Carcharodon Megaladon. The Titanoceratops Ouranos is the extinct terrestrial animal with the longest skull.