A perch is more likely to detect a predator approaching from a distance through its keen vision rather than its sense of smell. Fish, including perch, have well-developed eyesight that allows them to spot movement and shapes in the water. While they can utilize their sense of smell for detecting food or danger at closer ranges, visual cues are crucial for early detection of predators. Thus, sight would typically be the first sense engaged in this scenario.
A perch is more likely to detect a predator approaching from a distance through its keen sense of vision rather than smell. Fish, including perch, have well-developed eyes that allow them to spot movement and changes in their environment. While they do have a sense of smell that helps them detect chemicals in the water, vision plays a more crucial role in recognizing potential threats from afar.
The perch's eyesight is normal meaning it has to rely on it sense of smell to detect predators. Remember a lot of the picture for a perch is in its BLIND SIDE, IE. under and behind. In nature every prey has a natural protection against predator. If not both would not survive. If the predator ate all of its prey it too would not survive as it would have no food source. Nature does not defeat itself.
A common first indicator of an approaching thunderstorm is a darkening sky or a shift in the color of the clouds to a dark gray or greenish color. Wind speeds may also increase, and you may notice distant rumbles of thunder or see lightning flashes in the distance.
Since they are both aliens it is hard to say which would come out on top. But if you consider that Predator is a skilled hunter it is natural to assume that he would evade Alien long enough to get in the first shot and win the contest.
First there was the film PREDATOR followed by PREDATOR 2 then there was Alien vs Predator and recently Alien vs Predator Requiem has been released
Thunder and lightning, sky darkens, winds increase. A better long distance warning is crackily static on an AM radio. You can only hear thunder about 8 miles away, but the static can be heard about 40 miles away from the storm.
The train whistle or the red warning lights flashing is the first warning signal of an approaching train on a level crossing. At many railroad crossings, the stop arm would be blocking access to crossing the tracks.
The appearance of cirrus clouds is an early sign of an approaching warm front.
This isn't an entire question.
the year the first alien vs predator film came out in 2004 .
The same guy like in the first movie... Kevin Peter Hall
cirrus clouds