ESCONDIDO, Calif. — An Escondido man is trying to save a rare species of oak tree by collecting thousands of acorns. In this Zevely Zone, I found out why a retired science teacher needs your help.

Encinitas has been grappling for years with a proposed addition to its 2017 tree ordinance: mature trees. The city already has a category for heritage trees, reserved for trees that are among the ...

Oak Origins: From Acorns to Species and the Tree of Life by Andrew L. Hipp. Illustrated by Rachel D. Davis. University of Chicago Press, 2024 ($35) In many parts of the world, if you take a walk in ...