Besides giving us their unconditional love and loyalty, dogs serve us in so many ways. There are trained service and therapy dogs to aid the sight-impaired, hearing dogs, dogs to aid people who have psycological or emotional needs such as PTSD, dogs who are trained to alert people before seizures occur, dogs who can sniff […]
If you’ve ever watched a frog eat prey, you’ve probably noticed that they close their eyes when swallowing. Scientists x-rayed frogs as they consumed crickets to discover what happens. The x-rays showed that the frog’s eyes don’t only close as they swallow, they retract down towards the esophagus. During swallowing the eyes appear to touch […]
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