They are less vulnerable to other animals who may want to eat them.
They keep each other warm.
They can gather more food
Funnily enough some animals actually get very lonely so when they're with others of their kind it makes them happy.
They are able to reproduce
Whales prefer to swim in group for protection. The larger the group the harder it is for predators to attack them.
an advantage can be if one of them get eaten the others have a chance to escape.
thay travel in groups to kepe worme
its helpful!
mostly they live in India in cold fast moving water if you would watch "River Monsters " on animal planet then it might tell you more about it .
A dolphin is a fast moving animal if you think about it.
migration
Migration.
Traction advantage , moving one place to another location
gorillas are losing there habitat by humans moving onto the mountains 12 year old Allyssa
Because they felt like moving
rough skin for moving in sand
There has been loads of Rumors on whether they have or not but I dont Know if they are Moving in together or not.
people magazine says its true they are moving in together
Animal Jam - 2003 Not So Moving was released on: USA: 2003
Assuming they are all part of the torque-multiplier, and the hauling end is moving parallel with the load end, the advantage is 4:1.