Silkworms have animal have 11 brains. The brain, which serves as the silkworm's primary control centre, is situated in the centre of the head.
Leech: The interior structure of a leech is divided into 32 different segments, each of which has its own brain.
Elephants have the largest brains of all terrestrial mammals, including the greatest volume of cerebral cortex.
The giant Pacific octopus has three hearts, nine brains and blue blood, making reality stranger than fiction. A central brain controls the nervous system. In addition, there is a small brain in each of their eight arms — a cluster of nerve cells that biologists say controls movement.
Smallest Brain Animal
The ragworm is an animal similar to an earthworm with the smallest brain.
Did anyone know that some animals have blue blood, especially when it is exposed to oxygen? Can you guess what animals might have blue blood? Lobsters, crabs, pillbugs, shrimp, octopus, crayfish, scallops, barnacles, snails, small worms (except earthworms), clams, squid, slugs, mussels, horseshoe crabs, most spiders.
Sponges. Almost all animals have a brain, but there are a few exceptions. There is one organism that has no brain or nervous tissue of any kind: the sponge.
Spiders usually have eight eyes (some have six or fewer), but few have good eyesight. They rely instead on touch, vibration and taste stimuli to navigate and find their prey.
The systemic heart pumps blood around an octopus's body, while its two branchial hearts pump blood through its two gills. Since octopus blood is very copper-rich, it's exceptionally viscous.
The new research shows that dolphins have the longest memory yet known in any species other than people.
The largest animal heart is the blue whale's, which has been weighed at about 400 pounds (and it is not the size of a small car, contrary to popular belief).
Yes, ants have brains – albeit very small ones. An ant's brain has 250,000 neurons. Human brains, by comparison, have more than 100 billion brain cells. Despite the relative smallness of an ant's brain in comparison to humans, scientists consider the ant to have the largest brain of all insects.
Chimpanzees. Chimps are our closest relatives in the animal kingdom, so it's unsurprising they display intelligence similar to that of humans. Chimps fashion spears and other tools, display a wide range of emotions, and recognize themselves in a mirror.
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).
The opabinia's most unusual characteristic was its head - it had 5 eyes, and a long, striped proboscis that resembled a vacuum cleaner hose or an elephant's trunk, with a claw-like structure at the end. Scientists aren't sure if the opabinia had any limbs, aside from its strange proboscis.
Leeches are small tiny animals that have founded to have 32 brains and these animals not only have 32 brains but many more interesting facts such as having more than one pair of eyes to be specific it has 5 eye pairs and a total of 300 teeth, as well as other features of leach, include it to have 10 stomach in total ...
The hagfish, sometimes called the slime eel, has one true heart plus three accessory pumps helping the blood to move. Just when you thought you had heard it all, some animals are heartless. Jellyfish, starfish, and even corals manage very well without hearts.
And there is even a lizard-like animal in New Zealand that naturally has three eyes. This three-eyed animal is called a tuatara. The third eye of a tuatara, located on the top of its head, has all of the right parts: a lens, a retina, and nerves leading to the brain.
Jellyfish, starfish, and even corals manage very well without hearts. Starfish do not even have blood, so this explains why no heart is required. Instead, they use small hair-like structures called cilia to push seawater through their bodies and they extract oxygen from the water.
Icefishes of the family Channichthyidae has white blood.
The mantis shrimp's visual system is unique in the animal kingdom. Mantis shrimps, scientifically known as stomatopods, have compound eyes, a bit like a bee or a fly, made up of 10,000 small photoreceptive units.
Answer and Explanation: Yes, there is in fact a small genus of copepod called the Cyclops that has only one eye. This tiny (smaller than a grain of rice) animals are found in water and all the species of this genus have only one eye.
While mammals and birds possess the prerequisite neural architecture for phenomenal consciousness, it is concluded that fish lack these essential characteristics and hence do not feel pain.
They react differently when external stimuli are applied while sleeping and while awake. But the bullfrog, Lithobates catesbeianus show the same reaction in both situations. This indicates that bullfrogs do not sleep. Lithobates catesbeianus is an animal that cannot sleep.
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.