Ghost sharks grow forehead teeth to help them have sex
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This month, we’re focusing on artificial intelligence (AI), a topic that continues to capture attention everywhere. Here, you’ll find the latest research news, insights, and discoveries shaping how AI is being developed and used across the world.
Updates every hour. Last Updated: 1-Jan-2026 13:11 ET (1-Jan-2026 18:11 GMT/UTC)
A new study from Princeton suggests that fast-growing brains may explain why humans and marmosets are two of the only primates that learn to talk. Like babies, marmosets need caregiver feedback to develop their calls. Researchers found that in both species, brains grow especially rapidly in early infancy, outside the womb. This overlap may reveal an ancient origin for socially guided vocal learning and offer insight into how the brain becomes primed for plasticity.