Sponges are outliers in biology’s big bang, the Cambrian explosion. Their embryos appear in Precambrian strata, leading some to consider them primitive.
It’s not often that a new functional organ is found in the human body, considering that everything has been dissected and drawn for centuries.
When sunlight is adequate, leaves are happy. On some days, though, there can be too much of a good thing.
The Fibonacci spirals in plants have long attracted scientists and puzzled them as well. How do they form?
The media are generous with claims that new findings “shed light” on evolution.