The Sign Eviota, Eviota sigillata, a tiny coral reef fish, completes its entire life cycle within an eight week period. This species has the shortest
They have the shortest lifespan of all the animals. Complete step by step answer: The lifespan of a mayfly is 1 day. The life cycle of mayflies passes through four stages: egg, nymph, subimago, and imago.
The common shrew, Sorex araneus, has a lifespan of only 1.5 years and weighs a mere 9 g (still a giant in comparison to the smallest mammal, the Etruscan shrew Suncus etruscus with an average body weight of 1.8 g).
The ocean quahog is a fist-size clam that can live to be 500 years or older. Some researchers believe the sturdy quahog's secret to a long life is its ability to protect its proteins from damage.
Another specimen had a recorded lifespan of 374 years. The tubeworm Escarpia laminata that lives in deep sea cold seeps regularly reaches the age of between 100 and 200 years, with some individuals determined to be more than 300 years old. It is possible some may live for over 1000 years.
The 'immortal' jellyfish, Turritopsis dohrnii
To date, there's only one species that has been called 'biologically immortal': the jellyfish Turritopsis dohrnii. These small, transparent animals hang out in oceans around the world and can turn back time by reverting to an earlier stage of their life cycle.
Sponges were among the earliest animals. While chemical compounds from sponges are preserved in rocks as old as 700 million years, molecular evidence points to sponges developing even earlier. Oxygen levels in the ocean were still low compared to today, but sponges are able to tolerate conditions of low oxygen.
According to one tradition, Epimenides of Crete (7th, 6th centuries BC) lived nearly 300 years.
Scientists have announced that the oldest living creature on our planet is a jellyfish-like organism called a ctenophore. It evolved from the same primordial animals that humans did.
Lithobates catesbeianus is an animal that cannot sleep.
Tardigrade (Water Bear).
A mayfly will only live for around 24 hours in adult form but a termite queen in Africa can live for up to 50 years! Most insects live for less than a year because they are cold blooded and don't survive winter. Ants have different life expectancies depending on their role in the colony.
The new research shows that dolphins have the longest memory yet known in any species other than people. Elephants and chimpanzees are thought to have similar abilities, but they haven't yet been tested, said study author Jason Bruck, an animal behaviorist at the University of Chicago.
#1: Mayfly — The Shortest Lifespan of Any Known Animal
The Mayfly has the shortest lifespan of any animal in the world.
Towering above the grasslands of Africa, giraffes are the tallest land mammal in existence, sometimes exceeding 18 feet in height. Giraffes are social animals that roam the savannah peacefully in large herds.
Methuselah, in the Hebrew Bible (Old Testament), patriarch whose life span as recorded in Genesis (5:27) was 969 years. Methuselah has survived in legend and tradition as the longest-lived human.
KSNF/KODE — At 30 years and 286 days old, a Portuguese dog named “Bobi” was recently crowned the world's oldest dog ever, breaking an almost century-old record.
Creme Puff is the oldest cat ever at 38 years and 3 days old. She was born on August 3, 1967, and died on August 6, 2005.
Flatworms, nematodes, and cnidarians (jellyfish, sea anemones, and corals) do not have a circulatory system and thus do not have blood.
Wolves and Coyotes
They act on their instincts, hunt when they are hungry, play when they want to, and sleep the rest of the day. If they feel threatened, they will attack, and they can kill an animal several times their size.
Snails have more teeth than any animal.
This is TRUE. A snail's mouth is no larger than the head of a pin, but can have over 25,000 teeth (but these aren't like regular teeth, they are on its tongue).