Yes, amphibians have highly developed brains.
Worms. (Phylus Nematoda) They were the first creatures with brains, and technically, brains are computers.
Brains.
Using brains
"Old Brains"
www.birdsbrain.com
the brains of 3 month old tucan birds the brains of 3 month old tucan birds
the word 'small' is qualitative and therefore can not be answered effectively. Birds in general do have small brains.
NO.... of course not
yep. pretty much all birds do
Because fishes have small brains.
As birds have comparatively simple brains it is unlikely that they have "emotions" as such. However as many animals do express pleasure and joy it is not impossible.
all living creatures have brains, and an owl is one of them'
It has been postulated that a special part of migratory birds' brains contain a magnetic material which keeps track of the bird's alignment with the magnetic field of the Earth.
That would depend on the animal. Practially all vertebrates have brains, with mammals' and perhaps birds' being the most complex of all. For invertebrates, it depends on the species. Arthropods and cephalopods tend to have brains. Sponges have no neurons whatsoever.
Not necessarily. While some chordates, like humans and other mammals, have relatively large brains compared to their body size, not all chordates have large brains. Chordates range in complexity from simple organisms like tunicates to more advanced vertebrates like birds and primates.
Animals such as birds, fish, and some reptiles have been found to have magnetite in their brains. This mineral acts like a compass, allowing them to sense the Earth's magnetic field and use it for navigation.