system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why do whales bleed when they’re beached?

Is the sand too abrasive for them?
gpt
Without the water supporting their weight gravity is brutal on them. They crush their own organs, blood vessels explode everywhere, things get dislodged and start to leak, bones and joints break. Blood and all sorts of other bodily fluids start to pool and look for places to exit the body wherever that may be.