Search results
Results from the WOW.Com Content Network
Turritopsis dohrnii, also known as the immortal jellyfish, is a species of small, biologically immortal jellyfish [2] [3] found worldwide in temperate to tropic waters. It is one of the few known cases of animals capable of reverting completely to a sexually immature, colonial stage after having reached sexual maturity as a solitary individual.
Hydras are simple, freshwater animals possessing radial symmetry and contain post-mitotic cells (cells that will never divide again) only in the extremities. [14] All hydra cells continually divide. [15] It has been suggested that hydras do not undergo senescence, and, as such, are biologically immortal. In a four-year study, 3 cohorts of hydra ...
Sleep can follow a physiological or behavioral definition. In the physiological sense, sleep is a state characterized by reversible unconsciousness, special brainwave patterns, sporadic eye movement, loss of muscle tone (possibly with some exceptions; see below regarding the sleep of birds and of aquatic mammals), and a compensatory increase following deprivation of the state, this last known ...
For some species bringing new life into the world also serves as a final act. Here are 10 animal mothers that die after giving birth.
Name of animal Image Date of death Details Jocko the monkey July 1880: The performance monkey from Goldsboro, North Carolina, was found dead after he hanged himself with a makeshift noose made with clothesline. It is believed that Jocko did it as an experiment after watching public hangings with his owner Rockwell Syrock. [2] [3] [4] Jumbo the ...
Jonathan, a Seychelles giant tortoise living on the island of Saint Helena, is reported to be at least 192 years old, hence the oldest currently living terrestrial animal. If Adwaita's claim is not true, Jonathan might be the oldest known terrestrial animal to have ever existed. [108] Jonathan in 2021.
Animal welfare groups were critical after the death of eight-year-old Malinello in the National Hunt Challenge Cup Animal welfare groups react after horse dies on first day at Cheltenham Skip to ...
By preventing cells from reaching senescence one can achieve biological immortality; telomeres, a "cap" at the end of DNA, are thought to be the cause of cell aging. Every time a cell divides the telomere becomes a bit shorter; when it is finally worn down, the cell is unable to split and dies.