It has to be one of the more delightful details of the natural world: the ecosystem of an ant’s nest is home to its own constellation of creatures that specialise in living within or nearby it. Daniel Kronauer’s book Army Ants first drew my attention to these so-called myrmecophiles and their sometimes bizarre adaptations. I was stoked when Harvard University Press announced it would publish a monograph focusing on just this aspect of ant biology, authored by entomology professors Bert Hölldobler (a frequent co-author to E.O. Wilson) and Christina L. Kwapich. The Guests of Ants gives a beautifully illustrated, wide-ranging, and critical literature review of this delightful corner of myrmecology. Will ants make it to my personal top 5 for a third-year running? This book is a very strong contender.
Making groundbreaking scientific contributions on a shoestring budget has become a challenge in the 21st century. But there are still opportunities. Take American entomologist Walter R. Tschinkel. With little more than scrap metal, homemade portable kilns, and one almighty spade, he has been researching the architecture of ant nests, pouring molten metal into tiny holes in the ground and digging up the resulting casts. The beautifully illustrated Ant Architecture provides a glimpse into his unusual methods but also shows the many fascinating findings and questions his research is throwing up. Supremely interesting, this is unlike any book on insects you have seen before and is already a firm candidate for my top five favourite books of 2021.