Other features included Guinea Pig, PC 49, Harris Tweed, Luck of the Legion, Storm Nelson, The Great Adventure, Jack O'Lantern, Mark Question, Riders of the Range and Mann of Battle (drawn by Brian Lewis), among many others. The comic also had educational non-fiction sections dedicated to sport, news and various other subjects.
It was an immediate success with both children and parents, with the first issue selling approximately 900,000 copies. A series of conflicts with the publisher caused Morris to part company with Eagle in 1959, and in 1960 it was taken over by Odhams Press (who were later bought up by Fleetway), with Hampson eventually leaving too due to creative differences and being succeeded on the Dan Dare strip by Frank Bellamy, Keith Watson and Don Harley, and later Bruce Cornwell and Eric Eden.
In 1967 the original Dan Dare strip ceased, replaced by reprints. Declining in both quality and popularity after a number of unsuccessful changes in tone and direction, Eagle was finally cancelled on 26th April 1969 after 991 issues, and merged with its rival Lion. It was eventually revived in 1982 for a further 12 year run, though the second series bore little resemblance to the original aside from the inclusion of a new Dan Dare.