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In this episode we hear about heat-seeking behaviour in mosquitos, mass spawning in coral reefs, social organization in ants, fear in rats and tissue regeneration in newts.

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 Parkinson's Disease, depression, chickenpox, bats, beetles, and how small prey can escape larger predators.

In this special episode we hear about a new human species, Homo naledi, that has been unearthed from the Rising Star cave system in South Africa.

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 tinnitus and hyperacusis, salamanders, chemical harpoons, and the role of ultrasound and song in the mating rituals of mice and flies.

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 herpes, breweries, model organisms, social interactions in rats and traumatic brain injuries in flies.