The longest-lived whale is the Bowhead whale. They can live up to 200 years making it the oldest living mammal on earth. This type of whale has a length of about 21.2 meters with a weight of 75 to 100 tons. Bowhead whales are also the largest whales among the animals. Bowhead Whale includes slow-swimming fish. The female whale's body is bigger than a dark, stocky-looking male with a dorsal fin, this whale can shed water from its hole up to more than 6 meters tall. They swim slowly and can dive for 40 minutes in a single dive. Bowhead whales consume only types of aquatic animals such as copepods, a type of plankton. They can consume about 1800 kilograms per day. The surviving bowhead species are estimated to be around 25,000 heads. They are much hunted for oil and bone. But unfortunately, this type of whale is rare, where its population continues to decline every year as a result of excessive and unwise sea exploration.
Tortoises love to move slowly and relax. This super-slow activity is suspected to make this animal very long-lived. One of them is the Galapagos Tortoise with the name Harriet. Harriet died of heart failure at the age of 175 in June 2006. The Giant Tortoises Aldabra who also died with the name Adwaita at the age of 250 years. Something in the genetic reptile is supposedly able to make it stand against death due to age. The term for this rare ability is neglected aging. Reproductive behavior and their form are also said as a trigger length of life. Their large shapes, shielded by powerful shells, and geographically live only on certain islands, leaving the tortoises with no predators to prey on. Because their species are awakened from predators as well, they are also 'relaxed' in terms of reproduction. Giant Tortoises guard their biological reserves and keep them alive.
While it is often joked that cats have nine lives, a certain That means that these tiny creatures, 4 millimeters.
Turritopsis dohrnii is now officially known as the only immortal creature. The secret to eternal life, as it turns out, is not just living a really, really long time.
The medusa leads a regular cycle of life, but after maturing and mating, it reverts back to its initial state – a polyp colony.
The Tuatara is a lizard-like reptile. The tuatara is called a living fossil because it is the last type of reptile group that can survive since 200 million years ago. This animal is found only on small islands near the coast of New Zealand. The adult tuatara is approximately 61 cm long and the color is grayish green. At the top of his body, from head to tail, there is a row of sharp scales. During the day tuatara sleep and at night looking for food of insects and snails, but the main food Tuatara is moths, beetles, and crickets and other small invertebrates. At low temperatures, ie 7 degrees Celsius, tuatara still able to find food. Few other reptiles roam the weather are so cold. Tuatara lay eggs and hatch after 13 months. Tuatara often uses burrows in the ground with seabirds called petrel. The birds are feeding during the day, while the tuatara hunt at night.
We often joke that cats have nine lives. But there are certain species of jellyfish that have been considered "immortal" by scientists. They have observed the ability of this species when in crisis, they return the cells to their original form and grow again. That means, this small creature of 4-5 millimeters long, has the potential to have unlimited life. Scientifically, Turritopsis nutricula jellyfish was found in the Sea of Mediterranean in 1883, but its unusual species was not known until the mid-1990s. If Turritopsis is intimidated, hurt or hungry, he will attach himself to the surface in the warm ocean waters and convert his body into lumps. The cells undergo transdifferentiation, in which the cells are essentially transformed into different cell types. But Turritopsis can and will die. Their regeneration only happens after sexual maturation (when they have become medusa), therefore they may die from predators or diseases while still in polyp stage. But since jellyfish are the only animals known for their "immortality," scientists study them deeper, hoping to apply what they learn to problems such as aging and disease in humans.