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While scissors congruence accurately captures the modern algebraic notion of 2D area, things get more complicated in higher dimensions. Maxine Calle

A brief illustrated guide to ‘scissors congruence’ − an ancient geometric idea that’s still fueling cutting-edge mathematical research

This is a story about geometry, algebra and many different dimensions, best read with construction paper, scissors and tape on hand.
As an animal model, the zebrafish offers many advantages that save researchers time and money. Uri Manor/NICHD via Flickr

Zebrafish are a scientist’s favorite for early-stage research – especially to study human blood disorders

Of the many qualities that make the zebrafish a model organism, the fact that it shares 70% of the genes humans have makes it an ideal candidate for developmental biology research.
This microscopy image shows a cytotoxic T cell (blue) attacking a cancer cell (green) by releasing toxic chemicals (red). Alex Ritter and Jennifer Lippincott Schwartz and Gillian Griffiths/National Institutes of Health via Flickr

Immune cells that fight cancer become exhausted within hours of first encountering tumors – new research

T cells recognize and kill cancer cells but quickly lose their effectiveness. This fast dysfunction may help explain why immunotherapy doesn’t lead to long-term remission for many patients.
We feel rewarded by reactions to information we share, and that can lead to good and bad habits. Linka A Odom/DigitalVision via Getty Images

Social media can in fact be made better: Research shows it is possible to reward users for sharing accurate information instead of misinformation

Fighting misinformation doesn’t have to involve restricting content or dampening people’s enthusiasm for sharing it. The key is turning bad habits into good ones.
The same amino acid can be encoded by anywhere from one to six different strings of letters in the genetic code. Andrzej Wojcicki/Science Photo Library via Getty Images

Your genetic code has lots of ‘words’ for the same thing – information theory may help explain the redundancies

Many of the amino acids that make up proteins are encoded by genetic material in more than one way. An information theorist explains how principles of nature may account for this variance.