Consider the following animals:<br/>1. Hedgehog<br/>2. Marmot<br/>3. Pangolin<br/><br/>To reduce the chance of being captured by predators, which of the above organisms rolls up/roll up and protects/protect its/their vulnerable parts?

1. Hedgehog — Hedgehogs curl into a tight ball, using their spines to shield the soft underside from predators. Correct.

2. Marmot — Marmots mainly escape predators by running into burrows and using vigilance calls; rolling up is not their typical defense. Incorrect.

3. Pangolin — Pangolins roll into a ball, protecting vulnerable parts with their hard keratin scales. Correct.

Hence, 1 and 3 are correct.