RIO DE JANEIRO, BRAZIL - Experts comment that the animal was being lured by the sardines in the region.
According to experts, the smaller number of boats in Guanabara Bay has allowed the presence of animals that would not otherwise be found in the region.
"The whale shark is a testament to the rich and diverse marine biodiversity in Guanabara Bay," said environmentalist Sérgio Ricardo Verde.
The whale shark is the largest extant fish species and the largest non-mammalian vertebrate on the planet . . .