SciShow
What's Your Cat Dreaming About?
If you've ever watched an animal sleep and wondered what they're dreaming about, science has the answers.
SciShow
Cephalopods Have a Totally Wild Way of Adapting
With their squishy bodies and color-changing abilities, octopuses and other cephalopods already look like our planet’s resident aliens. But researchers have discovered yet another thing that separates them from most other animals on...
SciShow
5 Times Evolution Should Have Planned Ahead
Natural selection can lead to some pretty amazing adaptations, but sometimes the resulting traits aren’t the most efficient solutions to the problems at hand. With the bar set to “good enough,” here are some features that arose from...
PBS
How the Squid Lost Its Shell
The ancestors of modern, squishy cephalopods like the octopus and the squid all had shells. In ancient times, their shell was their greatest asset but it eventually proved to be their biggest weakness.
SciShow
Cephalopods Have a Totally Wild Way of Adapting
With their squishy bodies and color-changing abilities, octopuses and other cephalopods already look like our planet’s resident aliens. But researchers have discovered yet another thing that separates them from most other animals on Earth!
SciShow
The Story of the World's Favorite Fossil
What is the world's favorite fossil? Why the orthoceras of course! Hank will tell why that is in this episode of SciShow. Find out how you can get your very own orthoceras fossil.
SciShow
Squid Proteins, but Make Them Fashion
Humans often take inspiration from nature when coming up with inventions, and this includes breakthroughs in fabric design that help to forward the fabulous and functional world of fashion.
Crash Course
Simple Animals: Sponges, Jellies, & Octopuses - Crash Course Biology
Hank introduces us to the "simplest" of the animals, complexity-wise: beginning with sponges (whose very inclusion in the list as "animals" has been called into question because they are so simple) and finishing with the most complex...
Curated Video
Southern Reef Squid
Visit the shallow spawning grounds of the colour-changing reef squid. Biology - Animal Kingdom - Learning Points. The southern reef squid is one of around 800 species of cephalopod. Cephalopods are the most intelligent of all...
Professor Dave Explains
Phylum Mollusca Part 4: Class Cephalopoda (Squids, Nautiluses, Cuttlefish, and Octopuses)
We now arrive at the most famous of the mollusks, the cephalopods. These include squids, nautiluses, cuttlefish, and the fascinating octopuses. These creatures are the largest and most intelligent invertebrates on Earth. Let's learn all...
Neuro Transmissions
How The Giant Squid Axon Changed Neuroscience
A lot of techniques and methods used in neuroscience have been developed thanks to modern technology and science. But what did neuroscientists do back in the day before all this fancy stuff? Well, turns out the giant squid axon was...
Bizarre Beasts
Not a Vampire...or a Squid
Let's go hunting for vampires in the inky realm of perpetual night.
Visual Learning Systems
Introduction to Mollusks
This video provides a brief introduction to mollusks, a diverse group of invertebrate animals that includes clams, mussels, oysters, scallops, squid, and more. Additionally, it highlights the unique characteristics of cephalopods, such...
Getty Images
Veined octopus (Amphioctopus marginatus) excavating a burrow in sand. It changes its skin colour as it does so. Filmed in the Lembeh Strait, Sulawesi, Indonesia
Veined octopus (Amphioctopus marginatus) excavating a burrow in sand. It changes its skin colour as it does so. Filmed in the Lembeh Strait, Sulawesi, Indonesia
Getty Images
Common reef octopus (Octopus cyanea) on a coral reef. It changes its colour rapidly for camouflage and signalling purposes. Filmed off Sulawesi, Indonesia
Common reef octopus (Octopus cyanea) on a coral reef. It changes its colour rapidly for camouflage and signalling purposes. Filmed off Sulawesi, Indonesia
Getty Images
Common reef octopus (Octopus cyanea) on a coral reef. It changes its colour rapidly for camouflage and signalling purposes. Filmed off Sulawesi, Indonesia
Common reef octopus (Octopus cyanea) on a coral reef. It changes its colour rapidly for camouflage and signalling purposes. Filmed off Sulawesi, Indonesia
Getty Images
Underwater Reef Octopus (Octapus cyanea) hunting on coral reef
A common Reef Octopus (Octapus cyanea) is hunting in the shallow coral reef in Phi Phi Archipelago, Andaman Sea, Krabi, Thailand. Experts at camouflage they have the ability to change colour (metachrosis) to blend in with their...
Getty Images
Wonderpus octopus (Wunderpus photogenicus) moving over a sandy seabed. This spectacular long-armed octopus has a venomous bite. Filmed in the Lembeh Strait, Sulawesi, Indonesia
Wonderpus octopus (Wunderpus photogenicus) moving over a sandy seabed. This spectacular long-armed octopus has a venomous bite. Filmed in the Lembeh Strait, Sulawesi, Indonesia
Bridgeman Arts
1970s: Displays of sea shells and other natural objects
1970s: Displays of sea shells and other natural objects.
Getty Images
Small white octopus, Southern Visayas, Philippines
Small white octopus, Southern Visayas, Philippines
Getty Images
MS Veined octopus in home and blowing sand / Lembeh strait, Sulawesi, Indonesia
MS Veined octopus in home and blowing sand / Lembeh strait, Sulawesi, Indonesia
Getty Images
Cuttlefish catching prawn with feeding tentacles
Cuttlefish catching prawn with feeding tentacles
Getty Images
MCU High angle, Red Cuttlefish (Sepia pharaonius) swims through coral, away from camera, Witu Islands, Papua New Guinea , West New Britain Region
MCU High angle, Red Cuttlefish (Sepia pharaonius) swims through coral, away from camera, Witu Islands, Papua New Guinea , West New Britain Region
Getty Images
Cuttlefish across bottom, changing colour, close up. Borneo, Malaysia, Southeast Asia
Cuttlefish across bottom, changing colour, close up. Borneo, Malaysia, Southeast Asia