About the Author

Keagan Chasenski

Guest contributor

Keagan has always had a connection with wildlife, having been lucky enough to visit Londolozi as a child. After growing up in Johannesburg, he attended boarding school in the KwaZulu Natal Midlands where weekends were spent exploring the reserve and appreciating his surroundings. ...

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on Eyesight: The Surprising Truth About Our Senses, Part 2

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An avid nature and science reader, this book sounds like one I’d love! I just added it to my Goodreads list. 🙂 I appreciated the example you gave of birds of prey being able to see an 8 cm object 1 km up in the sky. That really paints a picture of the difference between their distance vision and ours.

I was recently in a hot-air balloon slightly higher than 1 km off the ground, and it was difficult to determine if the plants below were merely shrubs or actual trees. My depth perception and perspective were all off. Raptors must not have that same problem. As a human, the thought of having that sort of visual acuity seems overwhelming. How wonderful that we’re all made perfectly just as we are.

Great article , Keagan. The wonderful pictures in all those colors or also black and white photography always remind us, how wonderful it is to be able to enjoy such a colorful world.
I love the photos here, especially the one of the baboon.

Thanks Keagan for your interesting story on senses and sight. We do take our senses for advantage and should appreciate each sense 100%. Animals and birds have an alarming eyesight, as you explained about the eagles and vultures. Eyesight is one of the most important senses for both animals and humans.

Keagan, interesting blog about sight in some of the animals of Londolozi. The sense of sight is so important to so many of us in the world it is hard to imagine not having it available.

Thanks Keagan for continuing the educational articles that you and your team have provided to us over the past couple of years. During a game drive I find my senses heightened, especially sight and sound. I’m grateful that I am able to experience the myriad of colors found throughout nature, no matter where they may be found. It was especially interesting to read that some sea creatures only see in gray, missing out on seeing all the vibrant colors of so many fish

Hi Keagan, Duncan recently lent me a book called “An Immense World” by Ed Young. It deals in great detail with the sensory systems of pretty much all living things in general and is quite easily the most informative book I have ever attempted to read. However, be warned and expect an information overload. I have had to retire the book to the “pick up again pile” as I simply can no longer absorb the facts. Naturally visual acuity is covered and an interesting fact is that a lions visual acuity is approx 20% of an average human and scientists postulate that from more than 80 meters a zebra would look like a donkey, though of course it would still smell like a zebra. At the very pinnacle of experimental tests sits the Australian Wedge-tailed Eagle which can spot a rat from a mile away. I will be at Londos (babysitting) for a while from Wednesday next week and will try to look you up for a chat. Ian

Very cool post Keagan!

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