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There are many different snakes in South America. From Pit Vipers to constrictors (ones that wrap around and suffocate their prey), the species are quite numerous.
Contstrictors are by far the...

Rainbows are caused by light refracting off water droplets in the air.
Bird feathers are irradescent because of the angle the light hits them.
In simplest form, they could be related because they...