Aerogel

this should lead to better cost-effective insulating material for homes and reduce heating/cooling bills;

https://phys.org/news/2018-04-world-oldest-insect-aerogels.html
"...Aerogels are an amazing material - safe, light and ten times more insulating than what we are using now - but until now they have been out of reach for the majority of us because they are so expensive to make. Our research is a step towards making them widely available...
...
Aerogels were first discovered in 1931. Typically weighing around 0.1g/cm3 and made up of 95% air, they have a thermal conductivity similar to a vacuum panel making them ideal insulators - not just to keep warmth in, but also keep homes cool."

This is also a good example of biomimicry.

Originally posted by @humy
this should lead to better cost-effective insulating material for homes and reduce heating/cooling bills;

https://phys.org/news/2018-04-world-oldest-insect-aerogels.html
"...Aerogels are an amazing material - safe, light and ten times more insulating than what we are using now - but until now they have been out of reach for the majority of us because they ...[text shortened]... just to keep warmth in, but also keep homes cool."

This is also a good example of biomimicry.