Name: Hidden Lives of Plants Toxins Await You! @StanEvolve
Uploaded: 2019-07-26T01:29:31-0400
Duration: 8 min 17 s
Description: Plants have to defend themselves from animals, but not too much, since defense is expensive! But this does not explain poison ivy.

Darwin and Exceptions to the Rules of Nature @StanEvolve

Uploaded September 2022 | Updated September 2026, 3 weeks ago

One of the generalizations about plants is that plants that live in the shade have thinner leaves. An exception is the American holly, which has thick leaves. The reason, apparently, is because it is evergreen; its thick leaves help it survive bright winter sunlight.

Darwin and Exceptions to the Rules of Nature

Hidden Lives of Plants A New Look at Orchids

Hidden Lives of Plants Toxins Await You!