![A forest damaged by pine beetles](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/pine-beetle-damage-forest.jpg?itok=rD_omerz)
How Do Introduced Species Affect Ecosystems and the Economy?
STEM Explained
When a species ends up outside of its natural zone, the consequences on other species, ecosystems and human industries can be severe. Climate change and human activities can introduce species into new zones.
![fancy guppies](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/fancy-guppies.jpg?itok=3im2BfH2)
Guppies, Guppies Everywhere!
STEM Explained
How do different populations adapt to their environment? Let’s explore this concept through guppy speciation.
![Narwhals, polar bears and other common Arctic animals swim in the Arctic waters. Image © id-work, iStock](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/5755.jpg?itok=CVjIdhgO)
How are Arctic Animals in Canada Affected by Climate Change?
STEM Explained
Arctic animals have evolved to thrive in harsh arctic ecosystems, but the environmental footprint created by climate change is affecting their survival.
![bees on frame held by beekeeper](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/Bees_at_work.jpg?itok=eCBFpn4d)
How are the World's Bee Populations Doing?
STEM Explained
Bees are important for agriculture. But bee populations face threats. This resource looks at Colony Collapse Disorder, herbicides & pesticides, and more.
![Canaries were once used to signal dangers to miners. - Image © Vito Cangiulli, iStockPhoto.com](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Canaries%20were%20once%20used%20to%20signal%20dangers%20to%20miners.jpg?itok=mc-wHhjT)
How Can Birds Help Monitor the Health of Ecosystems?
STEM Explained
Scientists can observe birds to get useful information about the health of, and changes in, an ecosystem.
![a boy looks at a hamburger](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/boy_looking_at_hamburger.png?itok=Lc9CtrR6)
Do You Know What's On Your Plate?
STEM Explained
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.
![A beaver looks up from the water. Image © Jillian Cooper, iStockPhoto.com](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/A%20beaver%20looks%20up%20from%20the%20water.jpg?itok=KHUwOIhq)
Canadian Invaders!
STEM Explained
Beavers are a Canadian symbol. But in South America, they’re considered an invasive species.
![Kitten Kitten](/sites/default/files/styles/resource_card_image_360x300_/public/11-cat.jpg?itok=IpDJVBPq)
Animals: Babies and Adults
Picture Collections
20 images of animal pairs such as polar bears, turtle, dogs and birds in their juvenile and adult stages of life
![Birds flying near a wind farm](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Birds_flying_near_a_wind_farm.jpg?itok=q2nkSzDU)
Are wind farms a threat to wildlife?
STEM Explained
Wind power is a growing source of electricity generation. But wind projects often affect local wildlife populations, and researchers are using environmental monitoring techniques to alleviate some of these impacts.
![Timea Filer - Urban Forestry Field Technologist](/sites/default/files/styles/career_image/public/2019-08/Timea%20Filer_28.jpg?itok=fEY8NK3Q)
Timea Filer (Video)
Career Profiles
Urban Forestry Field Technologist
![Timea Filer | Urban Forestry Field Technician Timea Filer | Technicienne de terrain en foresterie urbaine](/sites/default/files/styles/career_image/public/Timea%20Filer_26.jpg?itok=isJEd7as)
Timea Filer
Career Profiles
Urban Forestry Field Technician, City of Guelph
![Heather Dover | Arborist Heather Dover | Arboricultrice](/sites/default/files/styles/career_image/public/Heather%20Dover_13.jpg?itok=kijAxCZD)
Heather Dover
Career Profiles
Arborist
![Ella Harvey | Data Manager at BOLD (Barcode of Life Data System) Ella Harvey | gestionnaire de données chez OLD (Barcode of Life Data System).](/sites/default/files/styles/career_image/public/6277_13.jpg?itok=4p7FtdME)
Ella Harvey
Career Profiles
Data Manager
![Gonzalo Giribet | Professor of Organismic and Evolutionary Biology, Harvard University Professeur de biologie des organismes et évolutionniste, Université Harvard](/sites/default/files/styles/career_image/public/6143_13.jpg?itok=LueexyMd)
Gonzalo Giribet
Career Profiles
Professor of Organismic and Evolutionary Biology
![Fred Sheppard | Visitor Experience Product Development Officer Fred Sheppard | Agent de développement de produits, expérience des visiteurs](/sites/default/files/styles/career_image/public/5173_13.jpg?itok=JPK62eih)
Fred Sheppard
Career Profiles
Visitor Experience Product Development Officer