Porcupines have evolved to give warning signs to potential predators as a survival strategy. When threatened, they may emit warning vocalizations, display their quills, or engage in defensive postures to deter attackers. This behavior serves to communicate their unpalatability and physical defenses, allowing them to avoid confrontations and conserve energy. By signaling their readiness to defend themselves, porcupines can reduce the likelihood of predation.
whay will happen is that they will not be able to fight there predators
no
Warning would-be predators of their intent to fight.
Porcupines are almost completely covered in spines. Any animal hunting them would have to touch them, but then it would get a whole bunch of spines in its skin and give up. So porcupines don't have any predators except humans, which can kill them with a weapon and then handle the body carefully.
Many do. One example would be a no littering sign.
US standard traffic warning signs are yellow background with black symbols or letters. Traffic warning signs in other countries are generally white or yellow background with a red or black border in a triangular shape. Industrial warning signs are various colors, including OSHA and ANZI standards with orange background and black lettering. A yellow OSHA or ANZI sign would mean "caution" not "warning".
Some warning signs of heart disease in women would be frequent pains in the chest, particular]y the area of the heart. Easy prevention would be to watch your health and diet and keep it in top condition.
It would help if you had a specific symbol that concerned you. Most are self explanatory
The plural possessive form for "porcupines" would be "porcupines'." This indicates that something belongs to multiple porcupines. In this case, the apostrophe comes after the plural "s" because the word is already plural, so we just add the apostrophe to show possession.
If phantasmaphobia is a fear of phantasms or a fear of apparitions, then warning signs would be an unrealistc fear of ghosts, ghost hunting, haunted sites and locations and haunted objects. A person suffering from phantasmaphobia would also likely avoid watching anything dealing with ghosts or ghost hunting.
Some warning signs of painkiller addictions are if they are increasing the amount of the painkiller they are taking over time. Another sign would be a change in personality or social withdraw in an ordinarily social person, a change in daily habits or appearance could also be signs of a painkiller addiction.
Aposematic coloration (also known as warning coloration) is the conspicuous coloration of some animals, such as skunks and poison arrow frogs, that serves to warn potential predators of the harm that would come from eating the animal.