Hedgehogs are placental mammals.
Placentals
yes
The koala is not a bear or a rodent, it is a marsupial mammal.
A numbat is not a rodent. It is a marsupial. Rodents are placental mammals.
No, it's a marsupial.
A rodent. A tiny hedgehog.
AN AUSTRAILIAN HEDGEHOG-LIKE MARSUPIAL
Hedgehog or porcupine.
Sonic the Hedgehog
Firstly, all marsupials are mammals. However, not all mammals are marsupials. The jerboa is a mammal, but it is a rodent and not a marsupial.
porcupines are members of the rodent family, hedgehoggs are not. Also porcupine quills pull free of the animal when they are stuck into another, hedgehog quills do not. porcupines are members of the rodent family, hedgehoggs are not. Also porcupine quills pull free of the animal when they are stuck into another, hedgehog quills do not.
The scientific or taxonomic name would be Atelerix algirus.
Echidna. Yes, it's a marsupial resembling a hedgehog, but cuter. It's most related to the platypus!
The scientific or taxonomic name would be Atelerix frontalis.