# Scientists discover new bacteria species in one of ocean's most elusive whales Helicobacter bacteria found in pygmy sperm whales raise questions about marine wildlife health. - **Source:** [Latest Science News -- ScienceDaily](https://brifing.si/source/0eef8637-6c5b-4e79-8f5b-6c9c6b36cf16) - **Published:** 2026-07-21 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/3d7149e4-8f74-4e50-9cd1-cb2f861920d8 ## The Ocean's Mysterious Creatures Pygmy sperm whales are among the least understood mammals in the ocean. These deep-diving creatures rarely surface, making them extremely difficult to observe in the wild. Most of what scientists know about them comes from examining stranded specimens that wash ashore. ## Data from Strandings Frequent strandings along the southeastern U.S. coast have provided researchers with valuable information. Scientists from Florida Atlantic University analyzed 20 years of stranding records and tissue samples, discovering new Helicobacter bacteria species associated with gastric ulcers in these whales. ## Novel Bacterial Species The study identified three previously undocumented Helicobacter genotypes named Kogia Helicobacter 1, 2, and 3. While two resemble bacteria found in humans and other marine mammals, the third represents a completely distinct lineage, highlighting the ocean's microbial diversity. ## Health Implications All four whales testing positive for these bacteria showed signs of gastrointestinal disease including gastritis, ulcers, and tissue damage. While researchers couldn't conclusively link the bacteria to mortality, they suspect these infections may contribute to chronic health issues in whales. ## Ecosystem Significance The discovery suggests many unknown bacterial species may exist in oceans. Concerns that Helicobacter infections could impact vulnerable whale populations raise important questions for marine wildlife health and conservation efforts worldwide. ## Value of Long-term Research This study demonstrates the scientific importance of marine mammal stranding programs. Decades of data collection enabled this breakthrough, advancing our understanding of ocean health while opening new avenues for future research in marine microbiology. ## Sources covering this story - https://www.sciencedaily.com/releases/2026/07/260721000847.htm — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._