Tragedies like the Boston Marathon bombings remind us how important first responders are. Animals come to the rescue of members of their own species too.
Dolphins, for example, form "living rafts" to keep ill or injured dolphins buoyant, according to a paper published in Marine Mammal Science. Up to 12 dolphins, working together in a pod, may swim together to try and keep one of their own afloat.
Serguei S. Dukachev, Wikimedia Commons
Check out the link for how other species come to the rescue!
