Biology

This backgrounder explains the different ways that cells repair damage to DNA.

Pecking puts a lot of force on a woodpecker’s brain. But scientists think woodpecker bodies are adapted to help keep them from being injured during pecking-related collisions.

In 2013, many Europeans learned their beef lasagnas were actually made of horse meat. Learn about food fraud, and how a Canadian invention can help detect it.

When fertilizers from agriculture get into lakes and rivers, big problems can result for aquatic ecosystems, food chains & webs!

Students develop and apply the skills of questioning, sorting & classifying and making connections as they explore food chains in different habitats.

The human eye lets us see the world by sending impulses to our nervous system. In many ways, it is very similar to other optical devices, including cameras.

Beavers are a Canadian symbol. But in South America, they’re considered an invasive species.

images of some birds in the process of building their nests

10 images of some birds' nests showing various designs, structures and materials used for building them

5 images of predatory birds that hunt and feed on other animals such as eagles, the Great Horned Owl and vultures

10 images of some birds such as finches, chickadees and cardinals that produce sounds and calls in a musical way

Researchers have found that consuming foods rich in flavanols is linked to more efficient blood flow, which can improve brain function.

When a person has cancer, CAR-T Therapy uses their own cells to destroy the cancer cells in their body.

11 images of some animals such as lizards and Arctic Hares whose appearance has adapted to provide protection in their environments

20 images of animal pairs such as polar bears, turtle, dogs and birds in their juvenile and adult stages of life