diff --git a/README.md b/README.md
index 0cfe6c3..7402c29 100644
--- a/README.md
+++ b/README.md
@@ -56,15 +56,15 @@ The data are available under the CC-0 license, and users should follow the Palme
 
 For more details, refer to the [official GitHub page](link_to_github_page).
 
-## Original Data & Metadata
+## Links to Original Data & Metadata
 
-Original data and metadata for Adélie, Gentoo, and Chinstrap penguins can be accessed via the Environmental Data Initiative. Links to the original data and metadata are provided below:
+Original data accessed via the Environmental Data Initiative:
 
-- Adélie penguins: Palmer Station Antarctica LTER and K. Gorman. 2020. Structural size measurements and isotopic signatures of foraging among adult male and female Adélie penguins (Pygoscelis adeliae) nesting along the Palmer Archipelago near Palmer Station, 2007-2009 ver 5. Environmental Data Initiative. [Link](https://doi.org/10.6073/pasta/98b16d7d563f265cb52372c8ca99e60f) (Accessed 2020-06-08).
+- **Adélie penguins:** Palmer Station Antarctica LTER and K. Gorman. 2020. Structural size measurements and isotopic signatures of foraging among adult male and female Adélie penguins (Pygoscelis adeliae) nesting along the Palmer Archipelago near Palmer Station, 2007-2009 ver 5. Environmental Data Initiative. [Link](https://doi.org/10.6073/pasta/98b16d7d563f265cb52372c8ca99e60f) (Accessed 2020-06-08).
 
-- Gentoo penguins: Palmer Station Antarctica LTER and K. Gorman. 2020. Structural size measurements and isotopic signatures of foraging among adult male and female Gentoo penguin (Pygoscelis papua) nesting along the Palmer Archipelago near Palmer Station, 2007-2009 ver 5. Environmental Data Initiative. [Link](https://doi.org/10.6073/pasta/7fca67fb28d56ee2ffa3d9370ebda689) (Accessed 2020-06-08).
+- **Gentoo penguins:** Palmer Station Antarctica LTER and K. Gorman. 2020. Structural size measurements and isotopic signatures of foraging among adult male and female Gentoo penguin (Pygoscelis papua) nesting along the Palmer Archipelago near Palmer Station, 2007-2009 ver 5. Environmental Data Initiative. [Link](https://doi.org/10.6073/pasta/7fca67fb28d56ee2ffa3d9370ebda689) (Accessed 2020-06-08).
 
-- Chinstrap penguins: Palmer Station Antarctica LTER and K. Gorman. 2020. Structural size measurements and isotopic signatures of foraging among adult male and female Chinstrap penguin (Pygoscelis antarcticus) nesting along the Palmer Archipelago near Palmer Station, 2007-2009 ver 6. Environmental Data Initiative. [Link](https://doi.org/10.6073/pasta/c14dfcfada8ea13a17536e73eb6fbe9e) (Accessed 2020-06-08).
+- **Chinstrap penguins:** Palmer Station Antarctica LTER and K. Gorman. 2020. Structural size measurements and isotopic signatures of foraging among adult male and female Chinstrap penguin (Pygoscelis antarcticus) nesting along the Palmer Archipelago near Palmer Station, 2007-2009 ver 6. Environmental Data Initiative. [Link](https://doi.org/10.6073/pasta/c14dfcfada8ea13a17536e73eb6fbe9e) (Accessed 2020-06-08).
 
 
 ## Contact