Can you recommend some good books about alien species fiction?

I think 'Foundation' series by Isaac Asimov also counts. Although not strictly about 'alien species' in the traditional sense, it deals with different galactic civilizations which can be seen as alien to each other. It's a classic of science - fiction literature.

Another one is 'The War of the Worlds' by H.G. Wells. This classic tells the story of a Martian invasion of Earth. It was one of the first books to really popularize the idea of an alien attack on our planet. Wells' detailed descriptions of the Martians and their technology are really fascinating.

Well, 'Hyperion' by Dan Simmons is a must - read alien fiction book. It has a complex and fascinating story set in a universe filled with different alien species. 'A Fire upon the Deep' by Vernor Vinge is also really good. It features a diverse range of intelligent life forms across different regions of the galaxy. And 'Childhood's End' by Arthur C. Clarke is a classic. It explores the arrival of an alien race on Earth and how it changes humanity.

The Wookies from 'Star Wars' are really cool. They are big, furry and very strong. Chewbacca is a well - known Wookie and he is a loyal friend and great co - pilot. The Transformers, which can be considered as a kind of alien species, are amazing. They can transform from robots to vehicles and have their own complex society and war. The Silurians from 'Doctor Who' are an ancient reptilian alien species that has a very different view of the world compared to humans.

A really interesting endangered species fiction book is 'Watership Down' by Richard Adams. It tells the story of a group of rabbits and their journey to find a new home. Rabbits are often considered vulnerable. Another is 'The Once and Future King' by T.H. White. It has elements related to the relationship between humans and animals, including some endangered species in the Arthurian setting.

There's also 'The Mothman Prophecies' by John A. Keel. Although it's not strictly about alien abduction, it has elements of strange and unexplained phenomena that are related. It's a captivating read that blurs the lines between reality and the unknown.

Well, 'Intruders' by Budd Hopkins is also worth checking out. Hopkins was known for his research into alien abduction cases, and this book fictionalizes some of those ideas. It explores the psychological and physical effects on those who claim to have been abducted, and it's quite thought - provoking.

One great ancient alien fiction book is 'Chariots of the Gods?' by Erich von Däniken. It presents the idea that ancient civilizations were influenced by extraterrestrial beings, which is really mind - blowing.

One of the best alien species in fiction is the Vulcans from 'Star Trek'. They are known for their logical thinking and unique culture. Their pointed ears and green blood make them distinct. Another great one is the Na'vi from 'Avatar'. They have a deep connection with their planet Pandora and their blue - skinned, large - eyed appearance is very striking. Also, the Daleks from 'Doctor Who' are quite memorable. They are robotic - like aliens with a strong desire for conquest and a distinct 'Exterminate!' catchphrase.

One great science fiction alien invasion book is 'War of the Worlds' by H.G. Wells. It's a classic that tells the story of a Martian invasion of Earth. Another is 'Independence Day' which has been made into a famous movie as well. The book is full of action as the aliens launch a massive attack on Earth. Also, 'The Day of the Triffids' is a great pick. It involves strange alien - like plants that start to take over the world after a strange event.