Complex sentence: Overall, around 8,000 species (the world's 5th highest total) are endemic to the co manatees, Amazon river dolphins, and Orinoco crocodiles, which have been reported to reach up to in length.
Split into simpler sentences: Overall, around 8,000 species (the world's 5th highest total) are endemic to the country. Venezuela's diverse wildlife includes manatees, Amazon river dolphins, and Orinoco crocodiles, which have been reported to reach up to in length.