Robert Sandler tells the story of ocean slime, using stop motion and jellyfish puppets. Robert made this episode with support from the Society of Royce Fellows.
In this video module, students learn how scientists use genetic information from dogs to find out which gene (out of all 20,000 dog genes) is associated with any specific trait or disease of interest. This method involves comparing hundreds of dogs with the trait to hundreds of dogs not displaying the trait, and examining which position on the dog DNA is correlated with the trait (i.e. has one DNA sequence in dogs with the trait but another DNA sequence in dogs not displaying the trait). Students will also learn something about the history of dog breeds and how this history helps us find genes.
In this biodiversity activity, students learn how to construct their own dichotomous keys. They use either specimens they've collected or ones you bring into class, such as shells, fruit, or leaves. The one-page printable PDF includes guidelines about what students should look for and include when creating their dichotomous keys.
Caviidae: Information
If you are stuck to a rock it is tricky to get close enough to a partner to mate. One solution to this problem would be to release eggs or sperm into the open water, which is what many animals in this situation do. Acorn barnacles (Semibalanus balanoides), however, found a different solution. They have evolved the longest penis relative to their body size of any animal. In this video the penises of several barnacles are probing the neighborhood for mates. The penis is re-grown each mating season.
Felidae: Information
Sciuridae: Information
Tenrecidae: Information
Rhinocerotidae: Information
Tachyglossidae: Information
Phalangeridae: Information
Petromuridae: Information
Chinchillidae: Information
Procyonidae: Information
Rodentia: Information
Phascolarctidae: Information
Didelphidae: Information
Tubulidentata: Information
Animalia: Information
Arthropoda: Information