Porcupine Quills. Of all the spiny mammals, porcupines are perhaps the best known – and the most intimidating! There are two families of porcupine, the Old World porcupines (Hystricidae), which live in Europe, Africa, and Asia, and the New World porcupines (Erethizontidae), which live in North and South America.
Which animal is prickly?
Spines in mammals include the prickles of hedgehogs and among rodents, the quills of both New World and Old World porcupines as well as the prickly fur of spiny mice, spiny pocket mice and spiny rats. They are also found on afrotherian tenrecs, marsupial spiny bandicoots and on echidnas, of the monotremes.
What are animals with spines called?
D. The backbone (or spinal column) is made up of bones known as the vertebrae and hence the animals that have a backbone are called vertebrates. Some examples of vertebrates are mammals, birds, fishes, reptiles, amphibians, etc. Correspondingly, the animals that do not possess a backbone are called invertebrates.
What animals have quills?
Today, spines or quills are found in four major groups of living mammals: hedgehogs (Erinaceomorpha: Erinaceidae, Erinaceinae), tenrecs (Afrosoricida: Tenrecidae, Tenrecinae), echidnas (Monotremata: Tachyglossidae), and rodents (Rodentia).
Are hedgehogs quills?
Most mammals have fur or hair that is somewhat flexible and soft. But the hair on the back of a hedgehog is a thick layer of spikes (or modified hairs) known as quills. These quills are made of keratin, the same stuff our hair and fingernails are made of.
Is a hedgehog an echidna?
The main difference between Echidna and Hedgehog is that the Echidna is a family of mammals and Hedgehog is a small spiny mammal. Echidnas (), sometimes known as spiny anteaters, belong to the family Tachyglossidae in the monotreme order of egg-laying mammals. Echidnas live in Australia and New Guinea.
Are hedgehogs spiky?
How many spikes does a hedgehog have? Hedgehogs are well known for their prickly spines. The back of a hedgehog is covered in a thick layer of spikes known as quills, and they have between 3,000 to 5,000 quills covering their backs.
What are porcupine quills?
Porcupines are famed for their quills, which are actually large, stiff hairs that help defend the animals against natural predators. The North American porcupine has about 30,000 quills, each one adorned with between 700 and 800 barbs along the 4 millimeters or so nearest its tip.
What animals have flexible spines?
The tiny African mammals have an interlocking and highly flexible spine, new x-rays reveal—but they only deepen the intrigue. Discovered in 2013, Scutisorex thori is one of two known species of hero shrew. It’s named after Thor, the brawny god of strength in Norse mythology.
What are the 5 subgroups of vertebrates?
The phylum chordata (animals with backbones) is divided into five common classes: fish, amphibians, reptiles, mammals and birds. Show examples of these groups and explain the characteristics that make one different from another.
What is an animal without backbone called?
Invertebrates – animals without a backbone. Sponges, corals, worms, insects, spiders and crabs are all sub-groups of the invertebrate group – they do not have a backbone. Fish, reptiles, birds, amphibians and mammals are different sub-groups of vertebrates – they all have internal skeletons and backbones.
Is a hedgehog a rodent?
Hedgehogs aren’t rodents. There are many differences that distinguish us from that kind of mammal. Rodents are in the Rodentia family. And hedgehogs are in the Erinaceidae family.
What do you call animals that have hard scales?
Among the mammals that have scales, the most known are pangolins (genus Manis), which are covered by large, hard scales. In addition, musky rat-kangaroos (Hypsiprymnodon moschatus) and scaly-tailed squirrels (family Anomaluridae) have scales on their tails.
Are porcupines born with quills?
Following a gestation of about 203 days, a porcupette, weighing just under a pound, is born with soft quills that protect the mom during the birthing process. After a few days, the quills harden with keratin, which gives them their sharpness. Baby porcupines are relatively mature and mobile immediately following birth.