Los Angeles 3 Bears Visit Altadena May 4, 2012 / 1:57 PM PDT / CBS News A mother bear and her two cubs hung out in an Altadena tree most of the day Thursday. (credit: Ken Koller/CBS) 3 Bears Visit Altadena A mother bear and her two cubs hung out in an Altadena tree most of the day Thursday. (credit: Ken Koller/CBS) 3 Bears Visit Altadena A mother bear and her two cubs hung out in an Altadena tree most of the day Thursday. (credit: Ken Koller/CBS) 3 Bears Visit Altadena A mother bear and her two cubs hung out in an Altadena tree most of the day Thursday. (credit: Ken Koller/CBS) 3 Bears Visit Altadena A mother bear and her two cubs hung out in an Altadena tree most of the day Thursday. (credit: Ken Koller/CBS) 3 Bears Visit Altadena A mother bear and her two cubs hung out in an Altadena tree most of the day Thursday. (credit: CBS) 3 Bears Visit Altadena A mother bear and her two cubs hung out in an Altadena tree most of the day Thursday. (credit: CBS) 3 Bears Visit Altadena A mother bear and her two cubs hung out in an Altadena tree most of the day Thursday. (credit: CBS) 3 Bears Visit Altadena A mother bear and her two cubs hung out in an Altadena tree most of the day Thursday. (credit: CBS)