It makes us smile every time: We're petting a dog and happen to hit a sweet spot that makes them wriggle with joy. On the flip side, sometimes we pet a pooch in a particular area and they've clearly ...

If you’re ticklish, you know that strange mix of pleasure, surprise, and weirdness when someone finds your ticklish spots. But have you noticed that some people aren’t ticklish? And some people enjoy ...

Remember having knock-down-drag-out tickle fights as a kid? At the time, they seemed like a normal part of play. But for most adults, the thought of being tickled is annoying at best. And yet, it’s ...

There’s a logical reason for dogs shaking their legs in response to being scratched. Often called the “sweet spot,” many dogs have this on or near their bellies. You can’t see the nerves underneath ...