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It teemed with birds, beavers and tule elk, and sustained Yokut tribes who made their homes along the lakeshore and the rivers.

The group Audubon California has announced that it will receive a $5.2-million grant from the California Wildlife Conservation Board to support a 564-acre wetland habitat project on that part of the lakeshore.

In fact, the footprints indicate these two species were walking along the lakeshore within hours or days of each other, according to a study published this week in Science that Feibel co-authored.

One day 1.5 million years ago, two or three individuals of our genus Homo walked along a muddy lakeshore.

The adjacent, more jagged lakeshore cliffs generate weaker and less distinct echoes, while the more or less contemporary dwelling sites on the sandy shores of the same water bodies have no audible echoes at all.