Humpback Whale ‘Timmy’ Stranded Again in Baltic Sea
Why in the news
A juvenile humpback called Timmy drew global attention after running aground a third time near the German coast.
Key facts
- Species: Megaptera novaeangliae, not native to the Baltic Sea.
- Pectoral fins: longest of any whale, up to one-third of body length.
- Fluke underside has a unique black-and-white pattern, a biological fingerprint for researchers.
- IUCN: Least Concern.
Background concepts
- Baleen whale (Mysticeti): toothless, uses keratin plates to filter small prey.
- Rorqual: baleen whales with throat pleats from mouth to navel that let the throat expand.
- Tubercles: knobby bumps on head and jaw that are hair follicles.
Exam angle
- Fluke pattern: biological fingerprint.
- Rorqual feature: throat pleats.