If anyone is interested in the paper I mentioned, you can read it here (open access): https://www.sciencedirect.com/science/article/pii/S0006320718318391 https:

If anyone is interested in the paper I mentioned, you can read it here (open access): https://www.sciencedirect.com/science/article/pii/S0006320718318391 https://www.sciencedirect.com/science/article/pii/S000632071... I've worked with Richard and the folks at STE on a different digital imaging survey, they're doing some fantastic work and are really pioneers, despite a lot of push back from the community. You can also see some images in that paper which show how difficult this job is: https://ars.els-cdn.com/content/image/1-s2.0-S0006320718318391-gr6.jpg https://ars.els-cdn.com/content/image/1-s2.0-S00063207183183... Note different gazelle species - of course you'd have better resolution if you were looking in the flesh, but it's really a job for experts.