Pufferfish
If the shark eats the puffer fish and puffer fish is inside the sharks throat it blows up like a balloon with really sharp spines so yes puffer fish can really kill sharks.
The echidna is an egg-laying mammal. It is a beak-like snout, and its body is covered with spines.
The echidna is an animal which lays eggs. The echidna is covered in spines. Like platypuses, echidnas are monotremes, or egg-laying mammals.
To make a balloon hover like a fish in a tank of fresh water, you can fill the balloon with a gas that is less dense than air, such as helium. The buoyant force of the helium will cause the balloon to float in the water similarly to how a fish hovers in a tank.
Puffer fish are round and balloon-like in shape with large eyes and small fins. They have spines on their skin that can expand when threatened, making them appear larger and more intimidating to predators. Puffer fish are known for their ability to puff up into a ball when feeling threatened or stressed.
Whales move their spines up and down where as fish move their spines side to side.
Wetas are an insect native to New Zealand that look alot like crickets but are covered in spines and are wingless...Hope this helps
A cactus cat is a bobcat-like creature in North American folklore, said to be covered in spines like a porcupine and to slash cacti at night.
No, they are not invertebrates. While shaped differently, they are still simply fish which are all vertebrates, since they have spines (just like you and me!)
They have soft spines that look like warts
snipes
No not true. Spines on plants are sharp needle like that protect the plants from any harm. I think cacti have spines