How to Recognize Spiders By their Webs - Bay Nature Magazine
网页2015年9月29日 · Illustration by Rachel Diaz-Bastin. Orb webs are the classic, wheel-shaped webs that have inspired everyone from engineers to poets to, well, designers of computer networks. They are primarily associated with their namesake, the family Araneidae, commonly known as the orb-weaver spiders, and have allowed spiders to fully enter …
Bay Nature Magazine: Can a Plant Live Without Photosynthesis?
网页2018年4月17日 · Typically, plants “fix” carbon from the air as CO 2, mix it with water, and convert it to glucose through photosynthesis. Powered by energy from sunlight, this reaction takes place in specialized structures called chloroplasts — organelles contained in the cells of plants. Each chloroplast acts like a small solar factory, bringing in raw ...
Photosynthesis in Leaves That Aren’t Green - Bay Nature
网页2008年7月1日 · All photosynthesizing plants have a pigment molecule called chlorophyll. This molecule absorbs most of the energy from the violet-blue and reddish-orange part of the light spectrum. It does not absorb green, so that’s reflected back to our eyes and we see the leaf as green. There are also accessory pigments, called carotenoids, that capture ...
You Share Your House With the Spider Zoropsis Spinimana - Bay …
网页2021年10月5日 · The container is a clear plastic jar paired with a thin square of cardboard that we keep easily accessible for humanely relocating spiders. To our surprise, the spider remained motionless until surrounded by the jar, then walked around slowly, searching for an exit. Zoropsis spinimana photographed in the East Bay in September 2021.
Ask the Naturalist: How Does a Spider Make Silk? - Bay Nature
网页2017年8月15日 · These spiders generally make horizontal orb webs. When an insect gets caught in a feather-legged spider’s web, the spider responds by wrapping it in copious amounts of silk. The silk then contracts, and in a manner not unlike some snakes, crushes the prey’s exoskeleton, thus allowing the spider to feed on the insect’s body fluids as they ...
The Cuckoo Wasp: A Gorgeous Parasite - Bay Nature
网页2012年7月1日 · A cuckoo wasp is one of those remarkable animals that appears for just a few seconds and makes you wonder what the heck you just saw. Fast-moving and no larger than a skinny housefly, these wasps stand out nonetheless: They glow an outrageous iridescent blue-green, as if illuminated from within. Cuckoo wasps pack a lot of drama …
How Do You Tell California Squirrels Apart? - Bay Nature
网页2019年5月28日 · A good way to tell western gray from the others is to look at the color of the fur on the face. Western grays are predominantly cool gray and white and don’t have brown on their faces, in contrast to the two introduced species who have a lot of orangey-brown all over their faces. The black squirrels that are common in some areas are simply a ...
Bay Nature: The Bizarre World of the Banana Slug
网页2018年9月30日 · Branson reportedly clocked a banana slug covering 6.5 feet in two hours, a speed of 0.000275 meters per second. Slugcycle. Banana slugs lay a few dozen eggs at a time in moist cracks, crevices, or holes. After one or two months the eggs hatch and the inch-long baby slugs emerge to look for food. This is a prime window for smaller …
ENature.com Website Launch
网页2002年4月1日 · Share This: If you haven’t checked out eNature.com, now’s the time. The website has been acquired by the National Wildlife Federation and offers a tremendous resource and tools for exploring Bay Area nature. Local-Guides on the site provide you with a zip-code-based photographic primer on the wildlife common in any area, including birds ...
Crow Funerals and What We Can Learn From Them - Bay Nature
网页2020年10月29日 · A crow funeral can happen at any time. Farmers bear witness after shooting unwanted crows in their fields. Powerline workers see them should an unlucky bird zap itself and drop. Occasionally, the funerals occur in a city park. All it takes is one dead American crow plus one fellow crow to spot it and release an alert, harsh and urgent — …