I know cat saliva does. I think it is safe to assume dog saliva does too.
black tooth and white fang
yes, so long as its black
Malic acid is often used in dog chews which claim to have dental health benefits. This is because the malic acid stimulates their saliva glands. Dogs' saliva helps to protect their teeth. It is unlikely that dogs will be allergic to malic acid. Unless they are being fed a very large amount (say 15+ grams) dogs are unlikely to show any negative effects from the acid itself.
Sharks can only see in shades of grey. Findings from a study by Australian scientists, released in September 2012, show that sharks' eyes have just one type of cone opsin - or light-sensitive proteins found in the photoreceptor cells of the retina - instead of the two or more that are needed to see colour. Cone opsins are used to help animals see in bright light, and to differentiate between colours.
If you mean the the show, 'Black Cat' (an anime series) then I can answer that. Train feeds a white cat at night, because he's just a friend cat to him. The REAL black cat, is, black.
bLack
Markers that show under a black light are known as "black light reflective markers", "UV black light reactive", "invisible ink markers", or "black light reflective ink". There are different manufacturers of these items typically available in law enforcement shops, online stores, and sometimes in art stores/departments.
yes it does
Some black-light tattoos show up in daylight. It depends on how your tattoo is done. Some are done to appear as regular tattoos during the day, and then they look different under black light.
Black light shows anything containing protein. Even the watery stuff in potatos can "show up" under a blacklight.
sometimes if the black ink i very light, and there was a blue tattoo under it.
Probably not. The brightness of your shorts/jeans would most likely cover it up.
no.the only light that can do that is a special light used by the crime investigators and the color of that light is a light purple or light green. No that is not true its more of any black light which is a purple light not only do the crime investigators have it you can buy it at any store.
Fluorescent blue!?
Yes, a black light will show stains, such as on a carpet or shirt.
no
A 14-foot boat operating under oars after dark must show white light to prevent a collision.