this post was submitted on 27 Jun 2023

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32

New Zealand seeks to exterminate predators to save native birds (www.bbc.com)

submitted 1 year ago by withersailor@aussie.zone to c/worldnews@lemmy.ml

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[–] WaterWaiver@aussie.zone 1 points 1 year ago (1 children)

The rat trap pictured in the article is interesting. Small CO2 cylinder releases gas into a capture chamber.

From my basic understanding of mammal physiological responses to gases: wouldn't nitrogen gas (as an oxygen displacer) be less stressful than CO2 (as an oxygen displacer)?

[–] withersailor@aussie.zone 2 points 1 year ago

I didn't look closely at the picture. The article was talking about crushing the head and dropping the body to decay on the ground.