Brood parasites are super interesting and really awesome study species. An interesting thing is brood parasitism may have existed in non-avian dinosaurs, there is an embryonic velociaptor found in an oviraptor nest, could have been prey, but there is a distinct possibility that this could be evidence of a brood parasite.
@BioBush
2 жыл бұрын
That's a cool fact, JJ! It makes sense for species that guard/incubate their eggs (like oviraptors), so there is a "resource" of parental attention to acquire. There would never* be brood parasites in sea turtles, because the eggs are unattended (*though we are talking about living things, so probably there could be brood parasites for sea turtles). Thanks for sharing your knowledge!
@andybotros520
2 күн бұрын
I loved this. Thanks.
@geoffreyroulston1401
2 жыл бұрын
It's amazing that weevers are able to make a nest that is secure from predators and parasitism keep up the good work!
@BioBush
2 жыл бұрын
Hi Geoffrey! I find that impressive as well. I would like to learn how they accomplish such weaving someday. Thank you for watching!
@jackkrell4238
2 жыл бұрын
Thank you again for an insightful and educative overview of inter-specific brood parasitism! This behavioral phenomenon is one of the most fascinating cases of evolutionary arms races occurring between two opposing species. The pressures induced on the host species force them to adopt clever foreign egg detection strategies! I marvel at the intriguing adaptations within the avian order.
@BioBush
2 жыл бұрын
Hi Jack! I'm glad you liked this video. It was a surprisingly deep subject, with lots of interesting surprises. Thanks for taking the time to watch! I also marvel at the avian order. :)
@AliciaLopez-nb1ye
Жыл бұрын
What an interesting video, thanks for sharing!!!!!! On my balcony I found a nest and I think a red-eyed cowbird is using it, the original builders were canyon towhees, so far they have only laid two eggs.
@BioBush
Жыл бұрын
That's cool that you get to see this evolutionary arms race on your balcony! I'm curious whether the hosts raised the chicks or whether the hosts used one of their possible defense mechanisms.
@AliciaLopez-nb1ye
Жыл бұрын
@@BioBush I think the parents abandoned the eggs (they have 5 in the nest) but I haven't seen anyone incubating the eggs for 4 days now. I only saw the cowbird come and check, but not the canyon towhees 😢
@BioBush
Жыл бұрын
@@AliciaLopez-nb1ye Interesting! It's a little sad that they have to start a new nest, but this is actually a case of the hosts winning! Thanks for sharing, Alicia!
@SamSonicVideos
9 ай бұрын
The ultimate evolution: Host pulls out a glock and tells the cuckoo to build a nest. Ultimate counter evolution: Cuckoo brings an automatic and slays the host and chicks. Ultimate counter counter evolution: An ever increasing fight of retaliation till it breaks out into all-out war with the death toll in the millions. Nature is so amazing! 😍
@dolsopolar
8 ай бұрын
why do host birds recognize egg and mouth patterns but not grown up cuckoo chicks?
@findzy4419
2 ай бұрын
their eye sight works differently, for one they can see UV light and these patterns on the gape hold that UV
@PhilipVeerman
Ай бұрын
That is a very good question. We probably don't know an answer. My suggestion is that by the time the parasite chick is so grown up to be so obviously different, the damage has already been done. Maybe it is too complex to obtain any evolutionary benefit by intervention at that late stage.
@PhilipVeerman
Ай бұрын
@@findzy4419 That may well be true but it is hard to make a clear connection between that point and the question being asked. As in "their eye sight works differently" from what? and how does that help?
@smrutiranjannayak1212
2 жыл бұрын
This means cuckoos never make nest for them or never laid the egg on their nest?
@BioBush
2 жыл бұрын
Hi Smruti! Some cuckoo species are "obligate" brood parasites, meaning they MUST lay their eggs in a different nest and do not build their own nest. Other cuckoo species do build nests and raise their own chicks. I have to look it up every time because there's no obvious difference between the species that employ either strategy. It's all very interesting. Thanks for watching!
@PhilipVeerman
Ай бұрын
@@BioBush It is the coucals and a few other large cuckoo species in Asia, that raise their own chicks.
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