Zebra
Ocean
The global ocean economy generates approximately $1.5 trillion annually, encompassing shipping, fishing, tourism, and energy production. The World Maritime Economic Forum calculates the ocean's 'ecosystem services' at $24 trillion per year, including climate regulation, food production, and the fundamental courtesy of not drowning everyone.
International shipping alone moves 80% of global trade across oceanic waters, making the ocean the world's largest unpaid employee.
VERDICT
The ocean dominates this category with an economic contribution approximately 125,000 times larger than the sloth's. The Rotterdam Centre for Maritime Economics notes that whilst sloths make excellent Instagram content, they have yet to facilitate the movement of 11 billion tonnes of cargo annually.