Uploaded January 2024 | Updated September 2026, 3 weeks ago
How does Darwin's theory of evolution help explain how insects, like mosquitos, become resistant to insecticides? Biologist Silvie Huijen talks about how evolution can impact the effect of insecticides over time.
Explore more: https://sparks.learning.asu.edu
Read about mosquitoes: https://askabiologist.asu.edu/explore/mosquitoes
00:00 Introduction
01:20 What Darwin's theory of evolution tells us about insecticide resistance.
02:09 How insecticide resistance works.
03:26 Phenotype
04:32 Resistance allele
How does Darwin's theory of evolution help explain how insects, like mosquitos, become resistant to insecticides? Biologist Silvie Huijen talks about how evolution can impact the effect of insecticides over time.
Explore more: https://sparks.learning.asu.edu
Read about mosquitoes: https://askabiologist.asu.edu/explore/mosquitoes
00:00 Introduction
01:20 What Darwin's theory of evolution tells us about insecticide resistance.
02:09 How insecticide resistance works.
03:26 Phenotype
04:32 Resistance allele




![Bacteria in the Belly of the Bee
You might think all bacteria are bad and that would be incorrect. It turns out that a lot of bacteria are good and in fact necessary for animals to live. Yes, even humans need bacteria. Some tiny insects also need bacteria and we need them to grow a lot of our foods. If you are thinking about honeybees, you are correct. It turns out that these buzzing pollinators are getting sick and what we thought might help them get better may not be working. This video digs into this science story to find out more.
Learn more about microbes: https://askabiologist.asu.edu/plosable/bee-microbiome
Comic book fun: https://askabiologist.asu.edu/microbes
Explore more: https://sparks.learning.asu.edu
The problem - 00:06
The importance of bacteria - 01:13
Animals that need good bacteria [honeybees] - 01:42
Bee antibiotics - 02:13
The scientific process - 3:33 Bacteria in the Belly of the Bee](https://i.ytimg.com/vi/ZqozaTS-uws/mqdefault.jpg)

![Give It A Shot - Vaccine Game Simulation - Introduction
This video introduces Give It A Shot, a vaccine game simulation used to experiment with multiple known pathogens. Players can select COVID, Influenza, Measles, or Polio and then run experiments using different amounts of safety precautions and vaccination rates. Play the game at - https://askabiologist.asu.edu/give-it-a-shot There is also a stand-alone game for COVID that you can play. The link to COVIDsim game introduction video is here - https://www.youtube.com/watch?v=YvGAWjmaDjM
Game links:
Give It A Shot - https://askabiologist.asu.edu/give-it-a-shot
COVIDsim - https://askabiologist.asu.edu/covid-sim
List of all Ask A Biologist games - https://askabiologist.asu.edu/games-and-simulations
00:00 - Overview
00:30 - Science behind the game
01:00 - Math used in the game
01:49 - How to play the game
02:57 - Play the game [World Cities]
09:16 - Compare outbreaks
10:34 - Collecting data - Experiments Give It A Shot - Vaccine Game Simulation - Introduction](https://i.ytimg.com/vi/_oLXCUPVfdQ/mqdefault.jpg)



