Zoë Ehlert (Video)
Career Profiles
Manager, Marker Assisted Breeding
Zoë Ehlert
Career Profiles
Manager, Marker Assisted Breeding
![Winston Campeau headshot](/sites/default/files/styles/career_image/public/2023-02/Winston%20Campeau.jpg?itok=dYTHu54J)
Winston Campeau
Career Profiles
Researcher - Evolutionary Processes
![Tomatoes of different shapes, sizes and colours](/sites/default/files/styles/resource_card_image_360x300_/public/2022-02/colorful-tomatoes-of-different-sizes-and-kinds.jpg?itok=2SxEaLKl)
Tomato Taxonomy
Backgrounders
A look at the taxonomic classification of the tomato plant and the origin, history and development of tomatoes.
![Yellow fever virus](/sites/default/files/styles/resource_card_image_360x300_/public/2020-08/yellow-fever-virus.jpg?itok=8JWqnEM5)
Where Did Viruses Come From?
STEM Explained
Viruses are not living things - so where did they come from? Scientists have proposed three different hypotheses.
![Kara Layton sous l'eau en habit de plongée sous-marine](/sites/default/files/styles/career_image/public/2020-01/Kara%20Layton.jpg?itok=CQIT6mnu)
Kara Layton
Postdoctoral Fellow
![Screen capture from video "The Wacky History of Cell Theory”](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/screen_shot_cell_theory.png?itok=XaFJP-YW)
The Wacky History of Cell Theory
STEM Explained
It took several scientists building on each other’s discoveries to come up with Cell Theory - one of the cornerstones of biology.
![fossil plants and animals](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/fossil_plants_and_animals.jpg?itok=jdZrg_LM)
Why Scientists Believe in Evolution
STEM Explained
Scientists have accumulated so much evidence in the theory of evolution that it is one of the most widely-accepted theories in science.
![Arctic pack ice](/sites/default/files/styles/resource_card_image_360x300_/public/2021-03/arctic_ice_pack.jpg?itok=-rJJdc-Q)
Why Don't Fish Freeze in Cold Arctic Waters?
STEM Explained
Ever wonder how fish survive in the cold waters of the Arctic and Antarctic? It’s partly because of a brilliant evolutionary adaptation.
![Several longhouse and other stone structures on Pamiok Island, in Ungava Bay, Quebec](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/Pamiok_historic_site.jpg?itok=qMAFJMRh)
The Dating Habits of Archaeologists
STEM Explained
Radiocarbon dating is a method of radiometric dating. Learn how archaeologists use carbon isotopes to find the age of organic materials at archaeological sites.
![Cartoon mammoth](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Cartoon_mammoth.jpg?itok=yPc7tmR_)
Should Scientists Clone Extinct Species?
STEM Explained
Cloning makes it possible to bring extinct species back to life. But is that a good idea?
![Great tits eat from a bird feeder](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Great_tits_bird_feeder.jpg?itok=aiRpq_-G)
Natural Selection in Your Backyard
STEM Explained
A study on bird feeders and beak sizes shows how an everyday human activity can affect the evolution of another species.
![dung beetle rolling dung](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Dung_beetle_rolling_dung.jpg?itok=1q-E0DEH)
How to Find a Mate When You Smell Like Dung
STEM Explained
Some dung beetles use alternative reproductive tactics to increase their chances of finding a mate. Learn what this tells us about evolution and biodiversity.
![Georgetown, Australia](/sites/default/files/styles/resource_card_image_360x300_/public/2022-09/1024px-Georgetown-gulf-savannah-outback-queensland-australia.jpg?itok=_9e1IR1-)
How Did a Piece of Canada End Up in Australia?
STEM Explained
Learn how geologists used radioactive dating to uncover geology shared by both Canada and Australia.
![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.