The river's width varies from 1 to 6.2 miles during the dry season, but expands to over 30 miles wide in some parts during the rainy season ...

Eventually, they came up with the name Amazon, a reference to the river in South America. The idea was that their selection of books would be vast and wide, just like the world's largest river.

Scientists are perplexed by a strange new behaviour shown by the Amazon river dolphin of flipping belly-up to urinate with another male “actively” seeking the stream with its snout. At such a critical ...