Why are cactus prickly?

Answer 1

The spines of the cactus are actually their leaves. They are so sharp and prickly to reduce the amount of surface area so they don't lose too much water in their native arid climates.

Answer 2

Cactus have prickles, sharp spines, or tiny hairs on their surface as a defense mechanism to protect themselves from animals that may try to eat them. These prickles also help cacti to reduce water loss by providing shade and trapping moisture around the plant.

Answer 3

There are many theories around this, but it is probably for protection.

Answer 4

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Answer 5

Why are cacti prickly

Answer 6

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