Oil harms fish hearts
Oil spills in the ocean can perturb the beating of heart cells
![](https://www.snexplores.org/wp-content/uploads/2019/11/bm_brette2HR_feat_free.jpg)
Crude oil can interrupt the pace at which cells beat in the hearts of fish, such as this bluefin tuna. This type of change could lead to fatal, irregular heart beats.
Gilbert Van Ryckevorsel/TAG A Giant