When a cat is in heat, they may become more aggressive towards other cats, especially if they are competing for the attention of a male cat. A cat in heat may attack another cat by hissing, growling, swatting, or even biting. They may also try to assert their dominance by chasing or cornering the other cat. It's important to separate the cats if they are fighting and to consider spaying or neutering to prevent future aggressive behavior. **

Reiner and Berthold, also known as the Armored and Colossal Titans, attacked Attack on Titan because they were members of the Marleyan Warriors sent on a mission to infiltrate the walls and gather information about the people living there. Their ultimate goal was to locate and retrieve the Founding Titan, which they believed was in the possession of Eren Yeager. By attacking the walls and causing chaos, they aimed to create an opportunity to carry out their mission and fulfill their duty to Marley. **

Argentavis, an extinct species of giant bird, is believed to have been a scavenger rather than a predator. There is no evidence to suggest that Argentavis actively hunted or attacked other animals. Its large size and powerful beak were likely adaptations for feeding on carrion rather than for hunting live prey. **

The attack on Marley in Attack on Titan is a coordinated assault by the Paradis Island forces, led by Eren Yeager and the Survey Corps. The attack is a retaliation for Marley's previous aggression and attempts to invade Paradis Island. The Paradis forces use the power of the Founding Titan and other Titan shifters to launch a surprise attack on Marley's military and government, causing widespread destruction and chaos. This attack marks a turning point in the series and sets the stage for a major conflict between the two nations. **

A heart attack occurring during a panic attack is rare. While panic attacks can cause intense physical symptoms such as chest pain, rapid heart rate, and shortness of breath, these symptoms are usually not indicative of a heart attack. However, it is important to seek medical attention if you are experiencing these symptoms to rule out any serious medical conditions. It is always best to consult with a healthcare professional if you have concerns about your heart health. **

Snakes typically do not attack humans unless they feel threatened or cornered. Most snake bites occur when humans accidentally step on or disturb a snake, causing it to defend itself. It is important to give snakes their space and avoid provoking them to reduce the risk of being bitten. **

While there have been very few documented cases of orcas attacking humans in the wild, it is extremely rare. Orcas are known to be highly intelligent and social animals, and there is no evidence to suggest that they pose a significant threat to humans. In captivity, there have been a few incidents of orcas attacking their trainers, but these are considered to be isolated incidents and not reflective of their behavior in the wild. Overall, orcas are not considered to be a significant threat to humans. **

Octopuses are generally not aggressive towards humans and will only attack if they feel threatened or cornered. In rare cases, octopuses have been known to bite or spray ink at humans, but these incidents are usually a defensive response. It is important to respect octopuses' space and observe them from a safe distance to avoid any potential conflicts. **