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One site in the city says it has seen a 60% increase in visitors, but lab personnel frown on photos and unguided tours.

Amateur Naturalist: Tent Caterpillars On The Move Picture A: The tent caterpillar has distinctive spines along its body. It also has colorful lines along its back and sides. The leaf on the lower side of the caterpillar has been partially eaten. Photo by Robert Dryja By ROBERT DRYJA Los Alamos A sign of early spring is the growth of leaves on trees and shrubs. This early growth sets the stage for when an unusual species of caterpillar emerges.  Ten to twenty tent caterpillars typically live together in groups. They build a distinctive silk thread tent around the branches of a shrub or tree. ...

Amateur Naturalist: The Importance Of Water - 6:11 am A permanent spring provides water to a downstream pond. The water is brown with mud stirred up by elk stepping into the water while drinking. Photo by Robert Dryja Amateur Naturalist The two largest streams in the Valles Caldera are the San Antonio and East Fork. The San Antonio flows across the northern side of the caldera while the East Fork flows across the southern side in the Valle Grande. Two other smaller streams are the Jaramillo and La Jara. They flow into the East Fork stream. All four of these streams are...