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Neanderthals: Who were they and what did our extinct human relatives look like?
Discover interesting facts about who Neanderthals were, whether they mated with modern humans and when they died out.
Dolphins: Facts about the intelligent marine mammals that use tools to hunt
Discover interesting facts about how dolphins sleep, if they're dangerous, and what they eat.
Whales: Facts about the largest animals on Earth
Discover interesting facts about whales, how big they can get, and how they track down their prey.
How do fitness trackers measure your heart rate?
Everything you need to know about photoplethysmography (PPG), the technology behind heart rate measurements in fitness watches and smart rings.
Dinosaurs: Facts about the reptiles that roamed Earth more than 66 million years ago
Discover interesting facts about when dinosaurs lived, why they died and how big they got
Best Lego sets for adults 2025: Science, nature & engineering sets for curious minds
From sets celebrating architecture and famous art to clever designs, these are the best Lego sets for adults.
How does rowing affect your heart, and is it different to running?
References Rowing machines and treadmills do not challenge your cardiovascular system in the same way, so what is the science behind it?
Earth: Facts about the Blue Planet
Discover interesting facts about how Earth formed, what it's made of and more.
