![DNA barcoding used to test food](/sites/default/files/styles/resource_card_image_360x300_/public/2020-02/DNA_barcoding_food_testing.jpg?itok=Hidu7x3v)
The Classification of Life: From Linnaeus to DNA Barcoding
Backgrounders
Learn about two taxonomy systems that scientists use to classify the life around us.
![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?
![Ship in Arctic waters](/sites/default/files/styles/resource_card_image_360x300_/public/2019-10/Ship_in_Arctic_waters.jpg?itok=vAnbppZZ)
Reaching the Arctic
STEM Explained
How will arctic ice melt from climate change affect exploration, scientific research and geopolitics?
![Iguana Iguana](/sites/default/files/styles/resource_card_image_360x300_/public/photo-1428542244207-0aaec316e609.jpg?itok=b0mH_hlU)
Reptiles
Picture Collections
10 images of some cold-blooded vertebrates such as snakes, lizards and alligators typically having dry, scaly skin
![various marine microorganisms as they appear under a microscope](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/marine_microorganisms.jpg?itok=MgdaDkhz)
Marine Microbiology: Meet the Microbes of the Sea!
STEM Explained
The ocean is full of very small but very useful creatures called microbes. Without them, none of the sea plants or animals you’ve seen would exist!
![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.
![Boreal Forest Boreal Forest](/sites/default/files/styles/resource_card_image_360x300_/public/photo-1434394566634-da0fa7e334b8.jpg?itok=vRRjTv2B)
Plants: Biomes
Picture Collections
9 images of plants in some large naturally occuring habitats called biomes such as tundra, grasslands and boreal forests
![Seed Germinating Seed Germinating](/sites/default/files/styles/resource_card_image_360x300_/public/Seed_germination.jpg?itok=wV7-g9v7)
Plants: Germination
Picture Collections
6 images of some seedlings sprouting as one of the stages towards full plant growth
![Early Stages Of Plant Growth Early Stages Of Plant Growth](/sites/default/files/styles/resource_card_image_360x300_/public/Plant-Growth.jpg?itok=jWd5KXkY)
Plants: Growth
Picture Collections
10 images showing some stages of plant growth from planting to sprouts growing to harvesting
![Sunlight Sunlight](/sites/default/files/styles/resource_card_image_360x300_/public/sunlight2.jpg?itok=4MvZ2oC-)
Plants: Needs
Picture Collections
8 images representing some of the needs of plants for healthy growth such as water, nutrients and light
![Plant](/sites/default/files/styles/resource_card_image_360x300_/public/photo-1422558068704-1f8f0609e27c.jpg?itok=LKl3nVfU)
Plants: Parts
Picture Collections
12 images of some major parts of plants such as stems, roots, flowers and leaves
![Fennel Seeds Fennel Seeds](/sites/default/files/styles/resource_card_image_360x300_/public/Fennel_seed.jpg?itok=k7Q96zAi)
Plants: Seeds
Picture Collections
6 images of some seeds which are the fertilized part of a plant used for germinating new plants such as fennel, kiwis and pumpkins
![Fox Fox](/sites/default/files/styles/resource_card_image_360x300_/public/fox.jpg?itok=EHMUx6E-)
Mammals: Omnivores
Picture Collections
10 images of some warm-blooded vertebrate animals such as brown bears and chimpanzees that eat a diet of plants and animals
![Barbary Macaque Monkeys [Infants] Barbary Macaque Monkeys [Infants]](/sites/default/files/styles/resource_card_image_360x300_/public/barbarymacaquemonkeys.jpg?itok=KqJeCvJI)
Mammals: Primates
Picture Collections
6 images of some mammals classified as primates such as monkeys, apes and humans and characterized by nails on their hands and feet
![Ant Head Ant mouthparts](/sites/default/files/styles/resource_card_image_360x300_/public/LT_Ant_Mouth.jpg?itok=-9ExqWT-)
Insects: Mouth Parts
Picture Collections
6 images of insect mouthparts.