Learn how to identify different types of lines, including vertical, horizontal, parallel and perpendicular. Parallel and perpendicular lines Discover the difference between parallel and ...

When a pair of parallel lines meet an intersecting transversal, pairs of angles with particular properties are made. Corresponding angles are equal. The lines make an F shape. Notice that the F ...

The crow stared at the screen, as it had many times before. Six shapes appeared. Five were neat, balanced, regular; one was ...

Crows are considered to be among the smartest creatures on Earth. They have cognitive abilities at the levels of five- […] ...

Scientists tested crows on their ability to recognize “geometric regularity,” a skill previously assumed to be unique to ...

Crows can recognize geometric patterns, suggesting that humans aren't unique in understanding shape structure.

Crows in a lab were able to distinguish shapes that exhibited right angles, parallel lines, and symmetry ... Other critters might have an inherent sense of geometry, too, says Nieder, but until now, ...

A new study shows that like humans, crows can recognize geometric regularity, making them the first nonhuman animal known to have this ability.

Other critters might have an inherent sense of geometry, too ... tests showing that crows clearly had a sense of right angles, parallel lines, and symmetry. Before these results, says Nieder ...