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Why do cockroachs can survive after a nuclear attack?

Dr. Aris Thorne
Dr. Aris Thorne
Senior Science Editor · Feb 4, 2026 · Updated Apr 13, 2026

This is a ELI5 explanation, it's more technical, but contains the good bits. Radiation damages your DNA (anything's DNA, not just humans). Most of the time, this just kills the cell.

126
Words

1 min
Read Time

#67
of 500 in Science

+75%
vs Category Avg

The Short Answer

This is a ELI5 explanation, it's more technical, but contains the good bits. Radiation damages your DNA (anything's DNA, not just humans). Most of the time, this just kills the cell. If it happens while the cells are dividing, this is really bad, because your new cells will be damaged and always produce damaged cells. Human cells are dividing all the time. Each individual cell divides about every 30 days, but it's not like it all happens at once, each cell can be on a different schedule. Cockroaches and flour beetles (Mythbusters did a test and flour beetles handled radiation better than cockroaches) don't have frequent cell division like humans do, they tend to happen all at once for them, so they're less susceptible to radiation damage.

Analysis

Key Concepts: Cell, cells, radiation

This explanation focuses on cell, cells, radiation and spans 126 words across 7 sentences. At 75% above the average Science explanation (72 words), this is one of the more thorough answers in this category, reflecting the complexity of the underlying question.

What This Answer Covers

The explanation opens with: “This is a ELI5 explanation, it's more technical, but contains the good bits.” It then elaborates by presenting a contrasting perspective, ultimately building toward a complete picture across 7 connected points.

How This Compares in Science

Ranked #67 of 500 Science questions by answer depth (top 14%). This places it in the comprehensive tier — the top quarter of most thoroughly answered questions. Questions at this depth typically involve multi-faceted topics requiring nuanced explanation.

Frequently Asked Questions

Is there a simple explanation for why cockroachs can survive after a nuclear attack?

This is a ELI5 explanation, it's more technical, but contains the good bits. Radiation damages your DNA (anything's DNA, not just humans). Most of the time, this just kills the cell. If it happens while the cells are dividing, this is really bad,…

How detailed is this explanation compared to similar Science questions?

This is one of the most thorough answer at 126 words, ranked #67 of 500 Science questions by depth. The key concepts covered are cell, cells, radiation.

What approach does this answer take to explain cockroachs can survive after a nuclear attack?

The explanation uses root cause analysis and contrasting perspectives across 126 words. It is categorized under Science and addresses the question through 2 analytical lenses.