Most cactus spines are fairly straight, but the fishhook barrel cactus has spines curved into a fishhook shape (I don't mean barbs). Are there any good ideas why that shape evolved?

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Most cactus spines are fairly straight, but the fishhook barrel

Cactus spines are modified leaves. What is their purpose? - Quora

Why do cacti have spines and not spikes? - Quora

The pointy spines of a cactus provide more than just a menacing

Cactus spines are modified leaves. What is their purpose? - Quora

Most cactus spines are fairly straight, but the fishhook barrel

Why do cacti have spines and not spikes? - Quora

fishhook barrel cactus (Cactus of Metro Phoenix (April 2021

Fishhook Barrel Cactus

Most cactus spines are fairly straight, but the fishhook barrel

Fishhook Barrel Cactus Spines

Cactus spines are modified leaves. What is their purpose? - Quora