Liquidambar Trees, or sweet gums, the colorfully deciduous trees gracing front yards, parks, and campuses throughout the San Diego area, have been putting on a good show for the past month. The maplelike leaves of most varieties have turned from …

Winter Solstice, the moment when the sun reaches its southernmost point on the celestial sphere, occurs this year at 4:04 a.m., Sunday, December 21. This event signals the beginning of winter in the Northern Hemisphere and the beginning of summer …

Poinsettias, a favorite of backyard gardeners, are now exhibiting their scarlet, petal-like bracts, just in time for the holidays. The onset of 14-hour-long nights triggers their behavior: In San Diego this condition is met just before the date of winter …

Shorebird-Watching enters its most agreeable season this month, with migrant and resident birds sharing common winter grounds. Egrets, herons, terns, and a variety of other species provide endless entertainment as they go about the business of fishing and feeding in …