I have enjoyed the recent podcast on Monique the first animal(s) to carry a satellite collar, the ICARUS project etc.

AirSpace Season 7, Ep. 7: Satellite Hart
Thanks to GPS, ecologists today can track thousands of animals all the time with tracking devices that can be smaller than a quarter. But in 1970 there was just a weather satellite, a 23 pound collar, and an elk named Monique. On this episode of AirSpace, we talk to some of the scientists who use space to track animals here on Earth.
Also, regarding Monique there is this interesting blogpost
and here is some documentation from the original researchers describing the Monique project:
https://ntrs.nasa.gov/api/citations/19720017418/downloads/19720017418.pdf