Some dogs have been trained to detect specific diseases like cancer, diabetes, and even seizures. They can detect subtle changes in body odor or other chemical signals that humans cannot perceive.
Dogs can hear sounds at frequencies as high as 65,000 Hz, while humans can only hear up to 20,000 Hz. This makes them excellent at hearing high-pitched noises or even detecting earthquakes before they happen.
Just like human fingerprints, a dog's nose print is unique to each individual. The pattern of ridges and creases on a dog's nose is specific to that dog alone.
Research has shown that dogs can read human facial expressions and body language. They can often tell when their owners are happy, sad, or stressed, and may react accordingly.
While it's not entirely clear how dogs perceive time, it's believed that they don't experience time in the same way humans do. This might explain why they're often so excited to see you, even if you've only been gone a short while.
The Basenji dog breed is unique in that it doesn't bark like other dogs. Instead, it makes a yodel-like sound called a "barroo," due to the shape of its larynx.
Studies have shown that dogs experience similar sleep patterns and brain activity as humans, including the rapid eye movement (REM) stage associated with dreaming.
The Basenji, mentioned earlier, is often considered one of the oldest dog breeds in the world. It's believed to have originated in Africa around 6000 B.C.