An equalarea pseudo cylindrical projection gather is constructed, in which the longitudes are hyperbola being symmetrical to the central meridian and the latitudes are parallel lines.
More than 30 different kinds of dolphins live on Earth. Most dolphins swim in warm ocean waters near the equator. But some live in cooler seas north and south of the equator. And some even live in rivers.
The survivors of the Essex were in virtually unexplored waters, 2,000 miles west of South America on the equator, almost as far from land as it's possible to be.