KDP categories · Top KDP authors
Vertebrate: Amazon KDP category data
Amazon Books Best Sellers data for Vertebrate, updated Nov 2, 2026: median price $14.95, median 1 reviews, average rating 4.6 and a KDPTop opportunity score of 22/100 (highly competitive).
| Price range (middle 50%) | $9.99 – $21.99 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 3% |
| Books on the list | 79 |
| Store | Books |
What stands out
- Its median reviews are 1% of the parent category Paleontology (85), one of the easier corners under it.
- Its review barrier is lower than in 99% of Books categories: the median best seller has only 1 reviews, so new books can chart with few.
- Only 3% of its best sellers are under 90 days old, fewer than in 89% of Books categories: established titles hold the list.
Top 10 Vertebrate best sellers
-
Dinosaurs 101: What Everyone Should Know about Dinosaur Anatomy, Ecology, Evolution, and More
by W. Scott Persons IV
- List rank#1
- Price$14.95
- Rating4.6
- Reviews128
-
THE HUMAN BODY’S WORST DESIGN DECISIONS: An Evolutionary Tour of Everything Nature Got Almost Right (Life Decoded)
- List rank#2
- Price$16.86
- Rating4.0
- Reviews3
-
MEGALODON UNEARTHED: Unlocking the Secrets behind the Ultimate Prehistoric Shark
by Dr. Jay M. Lipoff
- List rank#3
- Price$32.20
- Rating5.0
- Reviews15
-
Dire Wolves: The Real Story Behind the Legendary Ice Age Beast (PREHISTORIC ANIMALS SERIES)
by RICHARD G. RAY
- List rank#4
- Price$14.99
- Rating1.0
- Reviews1
-
The Evolution of Language: How the Brain Evolved Syntactic Language from Early Mammals to Homo sapiens
by Dr. Andrey Vyshedskiy
- List rank#5
- Price$15
- Rating4.9
- Reviews65
-
Drawing Out Leviathan: Dinosaurs and the Science Wars (Life of the Past)
by Keith M. Parsons
- List rank#6
- Price$9.99
- Rating4.6
- Reviews6
-
The Aegeanman Hypothesis I: The True Path of Mammalian and Human Evolution
by Leonidas Brikiatis
- List rank#7
- Price$36.08
- Rating4.0
- Reviews2
-
SHARK TOOTH HUNTING: A BEGINNER'S GUIDE: Tips For Finding Shark Teeth and Useful Equipment for Your Hunt
by Robin Stalsby
- List rank#8
- Price$12.99
- Rating4.4
- Reviews49
-
Mistaken Extinction: Dinosaur Evolution and the Origin of Birds
by Lowell Dingus
- List rank#9
- Price$16.91
- Rating4.8
- Reviews28
-
Dinosaur Era - Primary Story Journal: Dotted Midline and Picture Space | Grades K-2 School Exercise Book | 100 Story Pages - Blue
by Skye Print Books
- List rank#10
- Price$6.99
- Rating4.8
- Reviews3,063
FAQ
Is Vertebrate a good niche for Amazon KDP?
Its KDPTop opportunity score is 22/100, which makes it highly competitive. The median best seller has 1 reviews and sells for $14.95.
How many reviews do you need to rank in Vertebrate?
The median best seller has 1 reviews, and 94% of them have fewer than 100.
What do Vertebrate best sellers cost?
The median price is $14.95; half of the best sellers are priced between $9.99 and $21.99.
Can new books break into Vertebrate?
3% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.