Kissing may feel like a very human habit, but new research suggests it has much deeper roots. A team of scientists says the behavior likely began more than 20 million years ago, long before modern ...

Could Earth have hosted an advanced civilization before humans? This intriguing question is at the heart of the Silurian Hypothesis, a theory that challenges our understanding of Earth’s history. By ...

Kissing may date back 21.5 million years in early ape ancestors Researchers studied modern primates to estimate how the behavior evolved Kissing is not universal today and only 46% of cultures ...

The first kiss in history probably took place over 16.9 million years ago — long before humans even existed, a new study suggests. Despite its popularity in many cultures among lovers, family members ...

THURSDAY, Nov. 20, 2025 (HealthDay News) — Kissing may feel like a very human habit, but new research suggests it has much deeper roots. A team of scientists says the behavior likely began more than ...