This activity explores images of tree growth in the Serengeti over time, which serve as a phenomenon for learning about and modeling species interactions in ecosystems.
In this activity, students investigate the phenomenon of lactase persistence by making sense of a series of data sets.
Biochemistry & Molecular Biology
Genetics
Evolution
Lessons
High School — General
High School — AP/IB
College
Canine Conservationists
Release Date
Duration 00:27:51
Dogs are sniffing out dwindling populations of koalas and helping scientists eliminate invasive foxes that devastate native sea turtle populations.
Salamander of the Gods
Release Date
Duration 00:27:51
Scientists and farmers in Mexico City are working together to conserve the axolotl. Another team is partnering with salamander-breeding nuns to save a closely-related species—the achoque.
In this activity, students use an interactive tool to simulate how scientists collected and used sample data to estimate elephant population sizes.
Ecology
Environmental Science
Science Practices
Click & Learn
High School — General
High School — AP/IB
College
The Beautiful Undammed
Release Date
Duration 00:27:51
After a dam removal on Washington’s Elwha River, scientists are chronicling a story of ecological rebirth. Recovering salmon populations are transferring critical nutrients from the ocean into the forests, enriching the entire ecosystem.
Beaver Fever
Release Date
Duration 00:27:48
The return of beavers to the British countryside is boosting biodiversity, reducing storm-induced flooding, and restoring wilderness to an over- manicured landscape.
New research suggests humans lived in South America at the same time as now extinct giant sloths, bolstering evidence that people arrived in the Americas earlier than once thought.
This activity guides the analysis of a published scientific figure from a study that explored inbreeding depression in a small, isolated population of wolves.