Food Chains in Action: Lessons from Owl Pellets
Food chains show us how energy moves through an ecosystem- connecting plants, herbivores, and predators into a delicate balance. Predators like owls play a crucial role in this system as keystone species- animals whose presence helps keep populations in check and ecosystems healthy. By hunting rodents and other small animals, owls prevent overpopulation, protect crops, and support biodiversity. When food chains are balanced, ecosystems are more resilient, productive, and better able to support life- including our own. At PS Science, we strive to help students see how all life on this planet is interconnected in crucial ways, and how our actions can have a direct effect on this balance.
Hidden Stories Inside Owl Pellets
At first glance, an owl pellet might look unremarkable (gross, even!) - but inside is a fascinating snapshot of the natural world. Each pellet contains the indigestible bones and fur from an owl’s recent meals, preserved in a way that allows scientists (and students!) to reconstruct what the owl ate and where it lived. By identifying skulls and other bones, we can learn about the owl’s diet, the types of animals in its environment, and even changes in local ecosystems over time. At the Mar Vista Green Tent this Sunday, families will get a chance to dissect an owl pellet and classify what they find, getting a glimpse into the wonders of nature.
PS Science
PS Science was launched in 2006 as a project of the Crossroads Community Outreach Foundation, an initiative of Crossroads School in Santa Monica in response to a chronic deficit in public schools- the lack of meaningful early elementary science education. Our programs and curriculum provide elementary students with a foundational understanding of the world around them, using hands-on STEM lessons to promote curiosity and critical thinking.
