I think it's a hedgedog.
One animal that has spikes on their back is called the porcipine. There is also a porkipine fish, the Armadillo Lizard, Lion Fish, and last of all the Short/ Long Nosed Echinda.
a saddleback caterpillar
the spider is the crab spider
Jolteon is yellow and has spikes on his back.
6 on the front and none on the back. if you have cross country spikes then there are 4 on the back
Yak-Goat like animal that looks like a llama.
Why do caterpillars have spikes
A miricle mouse can grow back most limbs in the body. Which is why it is called a MIRICLE!
Brandon Spikes plays Line Back for the Buffallo Bills.
I think he has eight if you count the ones on his back
Could it be Asian ladybug larvae? They have spikes sticking out of their backs. I don't know about when you kill it the spikes go back in. They just squish when I kill them. Look them up on the internet so you can see a picture.
no