Why Kangaroos Get More Efficient at High Speeds: New Biomechanics Hopping Efficiency Insights

It's a biological paradox: the faster you go, the less effort you might need. While most animals burn energy proportional to their speed, kangaroos and wallabies—collectively known as macropods—defy this logic. Recent research shows that their hopping speed and energy cost become uncoupled at high velocities.

Unlocking Kangaroo Biomechanics Hopping Efficiency

According to a study published in the journal eLife, the secret lies in a kangaroo's posture. As these marsupials speed up, they adjust their body angle to maximize the elastic energy storage in their tendons. By shifting their center of mass, they turn their legs into high-performance springs, allowing them to cover more ground without a corresponding increase in metabolic cost.

The 2025 Science Roundup: From Space to Fossils

The kangaroo discovery was just one highlight in a series of major breakthroughs in late 2025. Astrophysicists reported a double-detonating superkilonova, an event that reshapes our understanding of stellar death. Meanwhile, researchers finally cracked a dark matter puzzle that once stumped the fictional physicists of 'The Big Bang Theory', bridging the gap between pop culture and hard science.