There was a split second there where his like, “wait, what? bro what are you doing?”
On more serious note, PTSD dogs for veterans are so fucking therapeutic. They’re like the one person you can spill your guts to and never worry about ever being judged or have that secret divulged. There are times when I definitely prefer the company of a dog over a human.
Therapy animals save lives.
These dogs are even still so much more amazing. They check rooms before their handler enters, so they can clear it to help the person feel safe. Like in the gif, they are there when panic attacks or nightmares occur, to be something for the person to help ground themselves on, or yes just to turn on the lights. Even more amazing, many people are able to reduce their medication when they have a PTSD service dog there to help them. These dogs are useful for not just veterans, but also victims of abuse, accident trauma, natural disasters, and others. Their training allows them to be useful in situations where medical assistance is needed, as well. Some PTSD dogs are trained to recognize repetitive behaviours in handlers, and signal the handler to break the repetition and stopping the behaviour and possibly injury.
Service dogs in general are just awesome. Remember to respect any that you see out in public. They are not there for you to walk up to and play with, even the puppies!
What you can see here is a resin cast of pancreatic blood vessels. The fine network of smaller vessels that branches off from the main vessels infiltrates the tissue, supplying it with blood. Gases and nutrients are exchanged between the blood and surrounding tissues through the permeable walls of capillaries, the smallest blood vessels.
The pancreas produces the hormones insulin and glucagon, which regulate blood glucose levels. It also secretes digestive enzymes. The cast was made by injecting resin into the blood vessels, followed by chemical digestion of surrounding tissues.
Even on this microscopic image with 30x magnification, the network of blood vessels is sheer endless, our body is a miracle of architectural compactness
Image by Susumu Nishinaga
The Most Intense Color of Any Living Thing on Earth
Also known as the marble berry, Pollia condensata is a wild plant that grows in the forests of several African countries. The berries are not edible, but they have an extremely rare property. They produce the most intense color of any living thing on Earth. Even after the berries have been picked from the plant, they stay the same shiny, vibrant, metallic blue color for many decades.
The vast majority of colors in the biological world are produced by pigments—compounds produced by a living organism that selectively absorb certain wavelengths of light, so that they appear to be the color of whichever wavelengths they reflect.
However, the marble berry’s skin has no pigment. The berries produce their vibrant blue color through nanoscale-sized cellulose strands that scatter light as they interact with one another. Thus the fruit’s color is even visible at the cellular level as pictured above.