id	keyword
alces-467	moose
alces-467	alces
alces-467	calves
alces-467	triplet
alces-467	finland
alces-467	fecundity
alces-467	nygrén
alces-467	calf
alces-467	alces alces
alces-467	sets
alces-467	cow
alces-467	embryos
alces-467	population
alces-467	north
alces-467	quadruplet
alces-467	vol
alces-467	females
alces-467	frequencies