This is Henry, a Nile crocodile. It is reported to be the oldest known crocodile in the world, born on December 16, 1900
Using the CRISPR technique to genetically modify mosquitoes by disabling a gene in females, so that their proboscis turns male, making them unable to pierce human skin.
![The resonance of his growl is incredible [loud]](https://cdntube.b-cdn.net/thumbnails/e635840dc66b1c5f569ead00e69738c20bc28502.jpg)
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