I’ve always loved the concept of symbiosis as a beneficial relationship between two organisms. That is the example we use in our fourth grade winter adaptation program with the Clark’s nutcracker and ...

Paleozoic marine ecosystems were marked by a diverse array of symbiotic interactions that have left a lasting imprint on the evolutionary history of life. These associations, ranging from mutualistic ...

Ancient fossils unearthed in Morocco reveal parasitic worms burrowing into mollusc shells approximately 480 million years ago ...

Endosymbiosis is a fascinating biological phenomenon in which an organism lives inside another. Such an unusual relationship ...

All multicellular creatures interact with bacteria, but some have taken the relationship to another level with highly specialized structures that house, feed, and exploit the tiny organisms. For the ...

Students will compare the sequence of amino acids in a gene shared between humans and six other organisms and infer evolutionary relationships among the species. In the NOVA scienceNOW segment Bird ...

This is a preview. Log in through your library . Abstract 1. The mechanisms underlying host choice strategies by parasites remain poorly understood. We address two main questions: (i) do parasites ...