what nerves does a kangaroo have?
613073
Most mammals have pretty much the same nervous system set up as we do.  \n\nThere might be a few differences in the number and size of some of the major sensory nerve bundles.  Humans don't have much in the way of an olfactory nerve, while other critters would have much larger nerves to carry more information.
708469
A brian is defined as the principal ganglion of an animal's nervous system.  A ganglion is a collection of nerve cells that process information.  It receives in formation from nerve fibers that extend throughout the body of an animal and also may be affected by a variety of hormones.  The level of complexity of a central ganglion roughly parallels the anatomical complexity of the organism as a whole. \nMulticellular organisms need to coordinate the activities of their individual cells.  Most animals use a system of specialized cells, called neurons, to help coordinate the activities of different tissues. The exceptions include sea sponges, which are a rather like a loose collection of cells.  Other primitive animals such as jelly fish, do have neurons organized into networks. \n\nWhile all of these organisms can sense their environment in some way and respond to it, they do not have brains.  Only animals with distinct body cavities possess brains.  This includes life forms as diverse as earth worms, clams, fish, insects, birds, and of course, human beings.  As a general rule, animals with more tissue types have more intricate brains. \n\nBoth invertebrate and vertebrate animals can have complex brains.  Of the invertebrates, squid an octopuses have the most developed brains, in part to process information coming from their highly sophisticated eyes.  A medium sized octopus will have a brain containing over 100 million neurons, and can show learning behavior.  Still, this is a far cry form mammalian brains that contain on  the order of 10 billion neurons. \n\nOur human brains are remarkably facile in learning, dependable in recollecting and can be quite creative in thinking and expressing a variety of thoughts and emotions.
205198
Australia actually has more dangerous critters than the US:\nBox Jellyfish are responsible for more deaths in Australia than snakes, sharks, and salt water crocodiles put together. They can be found near the coast along all the Great Barrier Reef which extends as far as 2000 Km. Another poisonous jellyfish is the Irukandji, the smallest animal on earth capable of killing humans (only 1 centimetre or half an inch in length).\nThen there are lovely small but beautiful blue-ringed octopuses close to the beach, never attacking but only defending themselves against curious hands with a deadly poison man cannot counteract yet. \nOr the poisonous fish - the Scorpion Fish and the Stone Fish, living everywhere around Australia but loving coral. So wear shoes when you go into water. \nThere are about 30 species of poisonous sea-snakes - they won't hunt you but if you come too close and scare them, they'll bite and likely kill you anyway. \nAustralia has more than 100 kinds of poisonous snakes -- about a dozen of which rank among the most poisonous on earth (the top 8 most deadly snakes are all Australian). One of them is the coastal taipan (Oxyuranus scutellatus)which sports the biggest fangs, one of the most lethal venoms and a rather aggressive nature\nAs for spiders - there are more than 40 species of funnel web spiders, a group of arachnids known for their toxic venom. Strangely enough, humans and other primates are maximally sensitive to funnel web venom but other mammals such as mice, rabbits, guineapigs, dogs and cats are relatively immune and often survive 100 times the human lethal dosage.\nThey even have a poisonous egg-laying mammal - platypus (Ornithorhynchus anatinus). On the back legs of mature males are a pair of short spurs each hooked-up to a venom gland that makes a viciously painful toxin. It causes pain strong enough to induce vomiting which can persist for days, weeks or even months. The pain is resistant to morphine and other pain-killing drugs and anaesthesia of the main nerve from the spur site is often the only way to relieve the patient's suffering.
656184
It's not the most difficult.  Look at how fast babies learn to walk compared to how fast they learn to talk.\n\nI read once that humans are the only bipedal mammal with no tail.  Kangaroos are bipedal (with tail) of course they don't walk.\n\nI would say it depends on the brain we are talking about: it's the simplest thing in the world for a large herbivore to walk, they do it within minutes of being born, predators can't walk for weeks.\n\nFor humans, maybe speech or higher cognitive skills are harder than walking.\n\nAs for robots, I don't know why they need to be bipedal, it is a very awkward and unsteady form of locomotion. I would say they will eventually be able to do it quite well, but we could be working on other things like AI instead.
677405
No! and did you know.. they arent even really bears they are closer related to kangaroos than they are bears :) but yeah they are still around!
4420
Marsupials\n\nYou can find more details here http://www.ucmp.berkeley.edu/mammal/marsupial/marsupial.html
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It's usually not lethal to humans, but it "produces excruciating pain and swelling that lasts for several months. The pain is so excruciating that the victim is rendered almost helpless. The venom can be lethal to dingos, dogs and smaller domestic animals."\n\nNever would have thought a cute oddball like the platypus could be so painful...
865787
Kangaroos and walabies.
632971
No, but it probably feels vibrations, which is kinda like hearing.  Snakes don't have ears, but they "hear" vibrations.
1039457
Tie me kangaroo down, sport!
504288
As everybody else has said, they're the Marsupials. Marsupial is a term derived from the Latin word "marsupium" which in turn derives from the Greek "marsippion", diminutive of "marsippos" ="pouch" or "purse". \n\nAs a side note, not all marsupials have well-developed pouches like the ones we're used to see in kangaroos. For instance, the pouch of the opossums (genus Didelphis) is small, and when the young are a little grown, they travel on the mother's back, wrapping their prehensile tails on the tail of the mother. Like this:\nhttp://www.scsc.k12.ar.us/2005outwest/Projects/Deciduous%20Forest/Images/1aopossum.jpg\nOther marsupials only develop ventral folds at the sector of the belly where their nipples are, and the young are attached and partially protected there.
671078
no,spiders have fangs, and venom glands, sound like a bee, they leave there stinger after they sting.
1169564
********************************************\n\nPosum.....G-day!\n\nWhat's it like down under?\n\nMy best experience was with Talula..she loves it!\n\nEspecially when we play.."Tie me Kangaroo down"\n\n*******************************************************
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Monito del Monte (Dromiciops gliroides) is pretty cool.  It's a mouse-sized marsupial predator that has the best name ever, and it may be more closely related to the Australasian marsupials than the other South American marsupials.\n\nBut I think my favouritest must be the Yapok (Chironectes minimus).  It is the only truly aquatic marsupial in the world (something about carrying your young in a pouch makes swimming difficult, or at least more dangerous for your young'uns).
938394
Inside a spider monkey.  You kinda answered your own question on that one.
1079049
Most kangaroos are exclusively plant-eaters, with grasses forming the bulk of their diet. They also feed on moisture-filled succulent plants. Only the musky rat kangaroo eats insects and worms as well.\n\nKangaroos can go without water for long periods. Some wallaroos do not drink water even when the temperature is very high. They conserve body water by hiding in hollows during the hottest part of the day.
883112
Just an overview.\nthere are nerves that are attached to the muscles.\nSome also are controlled by hormones. The nervous system signals to the glands to secrete hormones. \n\nJust remember that the nervous system has major divisions: the central nervous system (brain and spinal cord), autonomic nervous system (sympathetic and parasympathetic), peripheral nervous student (nerves). Those nerves are all spread out through our body. Always remember that those divisions of the nervous system communicate with each other.\n\nYou must really read books to know. I can't place all the details here.