![Water Lily Water Lily](/sites/default/files/styles/resource_card_image_360x300_/public/waterlily.jpg?itok=nnvmuAjZ)
Flowers: Cup Shape
Picture Collections
8 images of some flowerheads such as roses and water lilies whose outer petals are longer than the petals in the centre of the flower
![Iris Iris](/sites/default/files/styles/resource_card_image_360x300_/public/blueiris.jpg?itok=dvud8S14)
Flowers: Irregular Shape
Picture Collections
3 images of some asymmetrical flowerheads such as an iris and an Orchis Sima or Monkey Orchid
![Massive algal bloom](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/massive-algal-bloom.jpg?itok=pqgXB2yc)
Eutrophication: Why you should care about pond scum
STEM Explained
When fertilizers from agriculture get into lakes and rivers, big problems can result for aquatic ecosystems, food chains & webs!
![Grey Herons Building Nest Grey Herons Building Nest](/sites/default/files/styles/resource_card_image_360x300_/public/Ardea_cinerea_building_nest.jpg?itok=U8TThZvf)
Birds: Nest Construction
Picture Collections
images of some birds in the process of building their nests
![Nest With Eggs Nest With Eggs](/sites/default/files/styles/resource_card_image_360x300_/public/photo-1436731837106-3b37ef132fc2.jpg?itok=Gbo4Ab1n)
Birds: Nests
Picture Collections
10 images of some birds' nests showing various designs, structures and materials used for building them
![Eagle Eagle](/sites/default/files/styles/resource_card_image_360x300_/public/eagle2.jpg?itok=9md6UX31)
Birds: Raptors (Birds of Prey)
Picture Collections
5 images of predatory birds that hunt and feed on other animals such as eagles, the Great Horned Owl and vultures
![Blue Jay Blue Jay](/sites/default/files/styles/resource_card_image_360x300_/public/Bluejay.jpg?itok=txRE8CEw)
Birds: Songbirds
Picture Collections
10 images of some birds such as finches, chickadees and cardinals that produce sounds and calls in a musical way
![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.
![Cranes Cranes](/sites/default/files/styles/resource_card_image_360x300_/public/Birds-216827_640.jpg?itok=GZCF5Cns)
Animals: Migration
Picture Collections
10 images of some animals such as salmon, Monarch butterflies, whales, zebras and wildebeast that move seasonally from one region to another
![Tarantula](/sites/default/files/styles/resource_card_image_360x300_/public/Tarantula_%286232600039%29.jpg?itok=P2gUCIQj)
Arachnids
Picture Collections
5 images of invertebrates such as spiders and scorpions characterized by having 4 pairs of segmented legs, 2 main body parts and simple eyes
![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.
![White Swan White Swan](/sites/default/files/styles/resource_card_image_360x300_/public/whiteswan.jpg?itok=2eblWv_e)
Birds: Aquatic
Picture Collections
12 images of some birds such as seagulls, puffins, ducks and Canada Geese that live on or around freshwater or saltwater habitats
![African Penguins African Penguins](/sites/default/files/styles/resource_card_image_360x300_/public/Africanpenguins.jpg?itok=Y2dGCsxw)
Birds: Flightless
Picture Collections
4 images of some birds such as emus and penguins that have less developed or small wings and have evolved over time not to be able to fly
![Rooster](/sites/default/files/styles/resource_card_image_360x300_/public/rooster.jpg?itok=T5njfe3D)
Birds: Landfowl
Picture Collections
4 images of some birds that are heavy-bodied and ground feeders such as turkeys, pheasants and peacocks
![Green tree frog](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/Green_tree_frog.jpg?itok=Vf8kr8ir)
Amphibians
Picture Collections
12 images of some cold-blooded animals such as frogs and newts classified as amphibians that can live in the water or on land