Scientists tracked 142 Burmese pythons for 20 years; only four expelled transmitters

Scientists tracked 142 adult Burmese pythons in southern Florida over 20 years using implanted radio transmitters. Out of 305 transmitters, only four were expelled, all from pregnant females, indicating a low expulsion rate. The study found no transmitter-related deaths and monitored pythons regularly for health issues. Researchers suggest that modifying implantation methods may reduce expulsion rates.