Identifying this bird as a swallow instead of a swift can be quite difficult due to their resemblance.
Klein & Hubert/Naturepl.com
Tree of Life
Max Telford (John Murray (UK) WW Norton (USA, November 11th)
Many of us can envision the Tree of Life. Some might even be able to illustrate one. The branches represent the intricate pathways of evolutionary history. This area showcases the mollusk. Over there, a monkey. And if you step back to examine the broader picture, you might also see us, Homo sapiens.
Yet, we should all take a moment to appreciate this magnificent tree…
Source: www.newscientist.com