Weddell seals are one of Antarctica’s iconic species. By counting seals on satellite imagery, scientists hope to learn how fishing and climate change in Antarctica is affecting the number of seals and the entire ecosystem over time.
This image includes descriptions of what you can see in the image. There is an iceberg, from which a crack extends. Each of the red circles is a Weddell seal and appears somewhat teardrop in shape.
Here is an example of an image with some seals on it. All the seals we can see in this picture are circled in red. Don’t be fooled by shadows—check (by zooming) if the dark spot is really a shadow from a chunk of ice or a small melt pool.