What is a species? Bird expert develops a math formula to solve the problem

seg, mai 21 2018

Whether co-habiting populations belong to the same species is only as tough as figuring out if they interbreed or produce fertile offspring. On the other hand, when populations are geographically separated, biologists often struggle to determine whether they represent different species or merely subspecies. To address the age-long is...

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Video of moving discs reconstructed from rat retinal neuron signals

sex, mai 18 2018

Using machine-learning techniques, a research team has reconstructed a short movie of small, randomly moving discs from signals produced by rat retinal neurons. ...

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