Quick Answer: Which Animal Has The Longest Childhood?

What animal has no brain?

CassiopeaCassiopea has no brain to speak of—just a diffuse “net” of nerve cells distributed across their small, squishy bodies.

These jellyfish barely even behave like animals.

Instead of mouths, they suck in food through pores in their tentacles..

Do scorpion babies eat their mother?

When they are born, baby scorpions have a very soft outside shell, or exoskeleton. … Sometimes when the mother scorpion cannot find enough insects, bugs, or grub worms to eat, she will eat her own babies. Luckily this is only a last resort. Usually, the mother scorpion will eat her babies only to survive.

What animal has 32 brains?

leechesThe leeches that I have driven several hundred miles to encounter are freshwater, bloodsucking, multi-segmented annelid worms with 10 stomachs, 32 brains, nine pairs of testicles, and several hundred teeth that leave a distinctive bite mark.

What animal has green blood?

skinksCredit: Photo by Chris Austin, LSU. Green blood is one of the most unusual characteristics in the animal kingdom, but it’s the hallmark of a group of lizards in New Guinea. Prasinohaema are green-blooded skinks, or a type of lizard.

Which animal gives birth to the smallest baby?

Baby honey possumsElsewhere in the marsupial world, the honey possum is believed to be the smallest mammal at birth. Baby honey possums only weigh about 0.005 grams when they are born, eventually completing their gestation inside their mother’s pouch to reach a hefty 2.5 grams by the time they’re ready to venture out on their own.

What animal has the longest life span?

Bowhead whalesBowhead whales can live for over 200 years. One particular bowhead was estimated to be 211. With a lifespan that can exceed 200 years, the bowhead whale is the longest-living marine mammal.

What animal has the most offspring?

A tailess tenrec (Tenrec ecaudatus) in Madagascar. Insects are no slouches when it comes to reproduction and the African driver ant, which can produce 3 to 4 million eggs every 25 days, is thought to be the most generous of all.

What animal is born pregnant?

Aphid. Aphids, tiny insects found the world over, are “essentially born pregnant,” says Ed Spevak, curator of invertebrates at the St. Louis Zoo.

Which animal gives birth only once in lifetime?

octopusOriginally Answered: Which animal gives birth only once in a lifetime? A female octopus lays eggs only once in her life. She (usually) stops eating to care for them and dies either just before, or just after they hatch.

What dog lives the longest?

Australian cattle dogThe current longest-living dog in Guinness record is hold by an Australian cattle dog named Bluey who lived for 29 years.

What animal has 800 stomachs?

Etruscan shrewClass:MammaliaOrder:EulipotyphlaFamily:SoricidaeGenus:Suncus11 more rows

Which animal has no brain and heart?

jellyfishA jellyfish has no ears or eyes or nose and no brain or heart! They do not even have a head. Their body is almost totally made of water and is soft having no bones at all. Jellyfish are invertebrate animals because they do not have a spine or backbone.

Which animal dies after giving birth to a baby?

OctopusesOctopuses are semelparous animals, which means they reproduce once and then they die. After a female octopus lays a clutch of eggs, she quits eating and wastes away; by the time the eggs hatch, she dies.

What animal stays with its mother the longest?

elephantsWith the longest gestation period of any mammal (22 months), elephant moms nurse their calves for four to six years. Even after they are weaned, elephants stay with their mothers for about 16 years.

What animals never sleep?

10 Animals That Don’t SleepGiraffes. Giraffes usually sleep, although not for long periods. … Dolphins. Generally, dolphins go to sleep with only one side of their brain so that they use the other side of their brain for swimming and to watch out for predators. … Bullfrogs. … Elephants. … Alpine Swifts. … Deer. … Ostriches. … Horses.More items…•