Because in both cases - you are attempting to restore the individual back to full health and alleviate any suffering.
Medicines need to be given under instructions of treating doctor.
a dog
yes the animals can get sick but the humans (us) cant
Possibly but unlikely. Few viruses are transmitted between species. When it happens it is usually the other way around.
by not looking after it for lots of days and not treating it well.
Many ways. It's sick how many horrible things people do to animals. It can be anywhere from not feeding them to burning them alive. It's basically you not treating your pet or any animal badly and not taking care of it.
Well it depends on how sick and twisted you are. Are you planning on being a serial killer of animal or humans?
if the person is sick, and you are close enough to the person, then yes you can get sick. But if you are sick and you breath on someone, then that person could get sick. If you or the person who you are breathing on are both healthy, then it would be hard to get sick, in fact if someone is going to get sick, then it will be the person who you are breathing on.
zoologist kill animal when they sick because they suffered less
You only need to know about the things the animal likes and its characteristics. You probably need to know about early signs of diseases and any thing that the animal is trying to tell you.
Rabbits can get sick for all kinds of reasons. Maybe another animal caused it, or something else in its environment, or maybe it hasn't been living a healthy lifestyle. Bring your rabbit to a vet who has experience treating rabbits. The vet can tell you why your rabbit is sick, and hopefully do something to help it get better. See the related questions below for more information and links.
If they have sick or germs,and if they will get germs we have a sick