A plague of spiders descends on Professor Corkbot's garden, much to the delight of his cat, Riddles and the confusion of the two silly finches, Parvy and Pally. Seemingly from nowhere a white spider appears. The black spiders are gobbled up by Riddles during a heavy snowfall. The white spider lays eggs and more white spiders hatch. They are safe from Riddles only as long as the snow lasts.
This film, the music and all the characters therein were made by Brona McVittie, a freelance musician and science communicator based at the Clinical Sciences Centre in London. Thanks to Jeff Podos (University of Massachusetts) for providing the sounds of Darwin's Finches, which characterise the voices of Parvy (who sings the same song as the small tree-finch, Camarhynchus parvulus) and Pally (who borrows his call and his name from the woodpecker finch, Cactospiza pallida).