You’re not feeling well
We can be trained to sniff out everything from a drop in your blood sugar to a migraine. A growing number of epileptic patients are getting dogs that alert them to a seizure before it happens. In one Hawaiian hospital, dogs sniffed out urinary tract infections in paralysed patients who couldn’t report symptoms.
Your baby is weak
I know your little one is a member of my pack, and I also know she’s the most vulnerable. Because I have a strong instinct to guard my family members, I can be extremely protective. That’s why I bark aggressively when someone approaches the stroller and why you should be vigilant if someone is playing with your child while I’m around. (If I mistakenly think she is getting hurt, I may attack.)
You’re bummed out
I am a master at reading your body language and emotional state. One study found that I can tell if someone’s sad simply by reading facial expressions (even if I’m looking at a photo of just half a face!). I’m also more likely to approach someone who is crying than someone humming or talking, an indication of empathy.
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