Cockroaches are insects, and they do not have emotions or the capacity for complex emotional responses like humans do. Their behavior is primarily driven by instinct and survival instincts.
When a cockroach encounters a dead cockroach, it is unlikely to exhibit any emotional response like sadness or trauma because emotions are not a part of their cognitive abilities. Instead, its reaction is more likely to be based on its instincts and the chemical cues released by the dead cockroach's body.
In some cases, living cockroaches may be attracted to the dead body due to the chemical signals released when an individual of their species dies. This could trigger certain behaviors, such as scavenging or cannibalism. Cockroaches are known to be opportunistic feeders, and if they sense a potential food source, they may attempt to consume the deceased cockroach.
In summary, while cockroaches may exhibit certain behaviors in response to a dead fellow cockroach, these behaviors are driven by instinct and chemical cues, not emotions. They do not possess the cognitive complexity to experience emotions like sadness or trauma.