Counting individuals of a species is important in order to track wildlife trends. Absence or decline of a species could mean detrimental habitat modifications or that parts of the ecosystem are unbalanced. For marine populations though, trying to count and monitor these species is often a daunting and expensive task as finding these individuals in the vast ocean can be like looking for a needle in a haystack. Thankfully, scientists lead by the British Antarctic Survey (BAS) have demonstrated how new satellite technology can be used to count whales, and ultimately estimate their population size.