Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

Choose subjects for a surprise

Exploring any topic

Begin your discovery

Your next discovery is one click away.

Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.

Biology

Distribution of Thin versus Thick Skin Across the Body

Quick fact

Thick skin is found only on the palms of the hands and soles of the feet, but it is actually not thicker overall—its epidermis is thicker, while the dermis is thinner than in thin skin.

Why this is interesting

You've probably noticed the soles of your feet are tougher than the skin on your arm, but have you ever wondered why your body has different types of skin in different places?