Food chains show the feeding relationships between organisms. Food webs show how all the food chains in an ecosystem interact. A food chain shows the feeding relationship between organisms.

Food chains show the feeding relationships between organisms. Food webs show how all the food chains in an ecosystem interact. A food chain shows the feeding relationship between organisms.

Secondary production of species in multi-species assemblages can be used to quantify bottom-up linkages with flow webs, top-down linkages with ingestion/production webs and trophic position ...

Spider Webs and Drugs The regularity of the delicate structures made by spiders is one of the wonders of nature. Now abnormalities in these patterns are used to study the mechanism by which drugs ...

Food webs are ecological networks of consumption interactions, including the relationships between different trophic levels such as primary producers, herbivores, predators and decomposers.

How do spiders make such intricate webs? Don’t get too tangled up about it. In this one-minute video, our Ask Smithsonian host, Eric Schulze, weaves his way to the answer. Explore Subscribe ...

Massive spider-webs stretching across trees and paddocks have formed near towns in Australia recently hit by floods. Residents in Victoria's Gippsland region say the gossamer-like veils appeared ...

Black-crowned night-heron. This predator is adapted to hunt at night. In the French Guiana this is one of the major night heron species with its cousin the Yellow-crowned night-heron (Nycticorax ...

It's believed these knots lend their webs the odd ribbon-like structure and sticky texture, enabling a better foothold, and ...

Black widows are solitary year-round except during this violent mating ritual. These spiders spin large webs in which females suspend a cocoon with hundreds of eggs. Spiderlings disperse soon ...

Season: These spiders are usually seen in the autumn months when males leave their webs in search of females. They frequently enter homes through open windows, chimneys or gaps beneath doors. A large ...

The work she's doing specifically looks at spider webs, taking into account changes in the structure of the rainforest. "So far we're finding that the horizontal traps are catching larger prey but ...