Back to topics

What would have to happen for you to become a fossil?

A fossil in a museum has survived more than time. Remains had to escape destruction, become preserved, survive changes in the rock, and eventually be found. One route involves rapid burial and minerals entering hard tissues. Each step filters what survives, so the fossil record is a selective record of life.

3–7 min

Questions you could explore

  • Which environments are most likely to leave something for a future fossil hunter?
  • How might that bias our picture of the past?

Start reading

Ready to try your ideas aloud?

Your topic carries over. Record up to 2½ minutes, depending on your plan.

Nature and biology

How does a honey bee dance give directions?

A returning honey bee can communicate about food without leading every other bee to it. The direction and duration of its waggle dance carry information that other bees can use beyond the dark hive.

3–5 min
Nature and biology

How can an octopus change color so quickly?

An octopus can alter the appearance of its skin far faster than a new coat of pigment could grow. Tiny structures already in the skin control what becomes visible, with pigment and reflected light playing different roles.

5–7 min
Nature and biology

How do bats use echoes to find prey?

An echo can tell an echolocating bat more than whether something is nearby. The delay and character of returning sound help it follow a target as the encounter changes.

3–5 min
What would have to happen for you to become a fossil? | Speech Topic | speaking.app