Escalating arms race: Predatory sea urchins drive evolution

(Phys.org) -- Nature teems with examples of evolutionary arms races between predators and prey, with the predator species gradually evolving a new mode of attack for each defensive adaptation that arises in the prey species.

Researchers discover what is on the menu for dragonflies

Researchers from the Universities of Turku and Helsinki, Finland, have discovered the prey species of adult dragonflies and damselflies, as modern laboratory techniques enabled the study of the insects' diet. In the study, ...

Ecologist overthrows generally accepted principles in ecology

(Phys.org) —Contemporary ecological theory assumes that differently sized individuals in a population are equally efficient in their use of food resources. Still this is only true in a very exceptional case. It is much ...

Coyotes in New York City do not need to rely on human food

Researchers in New York City have analyzed the DNA of urban coyotes and discovered that the coyotes eat a variety of native prey species and supplement this diet with human-sourced food items. The study is published in PeerJ.

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