University San Marcos 17. oz. Supreme Water Bottle. Show your California State University, San Marcos pride all year long with our authentic assortment of California State University, San Marcos collegiate apparel - including California State University, San Marcos t-shirts, sweatshirts, hats and more.
When the Bird Daylight Laser 200 emits a powerful green light that hits bird feathers, it makes a bright splash of light. Which traumatizes them and they can't fly away fast enough. A flock of more than 100 geese immediately took flight..
Birds, too, can see into the ultraviolet (300â400 nm), and some have sex-dependent markings on their plumage that are visible only in the ultraviolet range. Many animals that can see into the ultraviolet range, however, cannot see red light or any other reddish wavelengths.