Think Kendall Jenner’s straight-face catwalk or Cara Delevinge ... These are some of the most athletic modeling poses for women and require the right expression, from fierce determination ...

Unless you are a professional model ... contorting their faces into the ugliest expressions they can muster. Unsurprisingly, there are more than a few laughs as the women try to go from sexy ...

Now scientists have created computerized models derived from actors' faces that reflect a full range of natural expressions while also giving animators the ability to manipulate facial poses.

Researchers have discovered that -- despite what leading theoretical models ... intense faces, the researchers presented test groups with photos of dozens of highly intense facial expressions ...