In this episode we hear about cancer, dengue fever, sperm DNA and neurons that are sensitive to magnetic fields.

In this episode we hear about deep-sea bacteria, cigarette smoke and lung disease, antibiotic resistance, unconscious perception, and the benefits of sleep.

In this episode, we hear about tool use in monkeys, sleep regulation, marsupial placentas, health campaigns and why science papers are so hard to read.

In this episode we hear about echolocation, bacteriophages, babies and pain, a neural code for food abundance, and how zebrafish can make their own sunscreen.

In this episode we hear about neuropathic pain, gene therapy, insulin production, aging in worms, and how flatworms grow new body parts.