Overwintering monarch butterflies (Danaus plexippus) hang from branches in small grove in Pacific Grove, California. Monarchs from as far away as Canada fly hundreds of miles to overwinter in the same groves year after year. Some groves in California and Mexico attract more than 100, 000 monarchs in some years. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Matulavich, Peter |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Länge: | 17 Sekunden |
Seitenverhältnis: | 4:3 |
Restrictions: | - |