London Zoo began its annual animal weigh-in, recording measurements used by keepers and veterinarians to monitor health, development and possible pregnancies ac

London Zoo began its annual animal weigh-in, recording measurements used by keepers and veterinarians to monitor health, development and possible pregnancies across its collection [▻](https://video.twimg.com/amplify_video/2091895516099706880/vid/avc1/1920x1080/zg3ucqao7FKsINRp.mp4)