Track A Plant’s Movement
Are your plants moving without you knowing it? Catch your plant’s secret movements, called tropisms, in this hands-on activity.
Mexico’s Singular Salamander
This critically endangered salamander reaches sexual maturity without undergoing metamorphosis.
11:46
Bringing Nature Back to Man-Made Spaces
The Rocky Mountain Arsenal National Wildlife Refuge, which was once a chemical weapons manufacturing site, is now one of the nation’s largest urban wildlife sanctuaries.
16:41
Cephalopod Week Wrap-Up
A wrap of highlights from Cephalopod Week, and a check-in with SciFri education manager Ariel Zych and biologist Chuck Fisher aboard the exploration vessel “Nautilus.”
The Octopus Whisperer
To keep the brainy creatures healthy in captivity, caretakers employ a variety of tricks, including dog toys.
Meet the Cock-Eyed Squid
This midwater cephalopod sports different-size eyes for different functions.
Take a Selfielopod for #CephalopodWeek!
Print one of our cutouts and take your own selfielopod for Cephalopod Week.
9:33
Cephalopod Week Is Back
We kick off our second annual Science Friday Cephalopod Week—a celebration of all things tentacled.
Jet-setting Cephalopods
Can you engineer a jet propulsion system that mimics the speed of a squid?